Skip to main content
MedMaths
CalculatorsLearnPracticeCasesGuides
Home/Educator resources

For educators and student-support teams

Medication maths resources for nursing educators

Find the exact MedMaths resource you want to use, review it, then copy the direct link into your LMS, lesson plan, reading list or student-support material.
132 linkable resourcesNo account requiredDirect linking welcome
Browse resource library Review methodology
1

Find

Search or browse by resource type.

2

Review

Open the exact page and check it suits your lesson.

3

Copy

Copy the direct MedMaths URL into your LMS or lesson plan.

Educator resource library

Pick the exact page you want to teach with

Every row opens the specific MedMaths page and gives you a one-click copy button for the direct URL. Search across the whole library or browse the categories below.

Search titles, resource types or clinical topics. Common abbreviations and misspellings are tolerated.

132 resources ready to link · Open a category below to browse

Calculators

23

Direct calculation tools for arithmetic, checking working and demonstrating the relationship between inputs and results.

  • Scientific Calculator

    Calculator

    Calculate square roots, powers, percentages, logarithms, trigonometry and general arithmetic in DEG or RAD mode.

    Open resource

  • mg to mL Calculator

    Calculator

    Convert a medicine dose in milligrams to mL using the supplied concentration.

    Open resource

  • mg/kg to mL Dose Calculator

    Calculator

    Calculate mg/kg per-dose or per-day orders using kg or lb, divided doses, and liquid concentration.

    Open resource

  • Units to mL Calculator

    Calculator

    Convert a unit-based medicine order into mL using units/mL.

    Open resource

  • Tablet Dose Calculator

    Calculator

    Calculate how many tablets are needed from fixed doses or mg/kg per-dose and per-day orders, with mcg/mg/g unit matching.

    Open resource

  • Fluid Balance (Intake & Output) Calculator

    Calculator

    Add every recorded intake and output volume, then subtract output from intake to give the fluid balance, keeping the sign.

    Open resource

  • IV Drip Rate Calculator

    Calculator

    Calculate drops per minute from mL/hr or from total volume and infusion time.

    Open resource

  • IV Infusion Rate Calculator

    Calculator

    Calculate the pump rate in mL/hr from a prescribed volume and infusion time.

    Open resource

  • Observed gtt/min to mL/hr Calculator

    Calculator

    Reverse-check a running gravity drip by converting the observed chamber count into an estimated mL/hr.

    Open resource

  • mcg/kg/min Infusion Rate Calculator

    Calculator

    Convert between mcg/kg/min dose and mL/hr infusion rate for weight-based critical care infusions.

    Open resource

  • IV Infusion Time Calculator

    Calculator

    Calculate infusion duration and optional clock completion from volume to infuse, rate, and start time.

    Open resource

  • Medication Dilution Calculator

    Calculator

    Solve C1V1=C2V2 for medication stock volume, final total volume, or concentration.

    Open resource

  • Final IV Bag Concentration Calculator

    Calculator

    Check vial concentration, amount transferred, and final IV concentration from verified inputs.

    Open resource

  • BSA Calculator

    Calculator

    Calculate body surface area from metric or imperial height and weight using four published formulas.

    Open resource

  • Ideal Body Weight Calculator

    Calculator

    Calculate adult Devine ideal body weight in cm or feet and inches, with optional Robinson and Miller comparison estimates.

    Open resource

  • Adjusted Body Weight Calculator

    Calculator

    Calculate Devine + 0.4 adjusted body weight (AdjBW), with actual weight shown as a percentage of IBW for source-specific threshold comparison.

    Open resource

  • eGFR Calculator (CKD-EPI 2021)

    Calculator

    Calculate the modern race-free 2021 CKD-EPI eGFR, with optional cystatin C and BSA adjustment.

    Open resource

  • Creatinine Clearance Calculator

    Calculator

    Calculate adult Cockcroft-Gault CrCl when a medicine label, protocol or exam specifically requires this method.

    Open resource

  • Corrected Calcium Calculator

    Calculator

    Calculate the commonly used simplified albumin-adjusted calcium estimate with current evidence limitations.

    Open resource

  • Anion Gap Calculator

    Calculator

    Calculate anion gap from sodium, chloride and bicarbonate, with optional albumin correction.

    Open resource

  • Serum Osmolality Calculator

    Calculator

    Calculate serum osmolality from sodium, glucose and urea, with optional osmol gap calculation.

    Open resource

  • Corrected Sodium Calculator

    Calculator

    Adjust serum sodium for hyperglycaemia using the Katz or Hillier correction formula.

    Open resource

  • Paediatric Maintenance Fluids Calculator

    Calculator

    Calculate paediatric IV maintenance fluid requirements using the Holliday-Segar method (4-2-1 rule).

    Open resource

Learn lessons

34

Step-by-step teaching pages that educators can assign before or alongside practice.

  • Adding & Subtracting Clinical Quantities

    Lesson

    Fluid balance and other bedside totals: combining multiple clinical quantities, aligning units and decimals, and interpreting negative results.

    Open resource

  • Multiplying & Scaling

    Lesson

    Introduces per-unit relationships through weight-based doses, repeated quantities and rates that continue over a stated time.

    Open resource

  • Dividing & Finding the Rate

    Lesson

    Builds the idea of rate and concentration by dividing totals across time or volume, then checking whether the result is sensible.

    Open resource

  • Percentages in Medication Maths

    Lesson

    Connects percentages, decimals and fractions to medication strengths, with emphasis on what a percentage label actually represents.

    Open resource

  • Working Through Multi-Step Calculations

    Lesson

    Shows learners how to plan a calculation chain, preserve intermediate precision and carry units from one step to the next.

    Open resource

  • Read a Medication Maths Question

    Lesson

    Teaches learners to unpack a word problem into what is ordered, what is available, relevant context and the required answer unit.

    Open resource

  • Unit Conversions

    Lesson

    A practical refresher on mass, volume, weight and time conversions used throughout medication and IV calculations.

    Open resource

  • Medication Labels & Concentrations

    Lesson

    Uses vial, ampoule and bottle examples to teach concentration, label interpretation and the amount contained in a stated volume.

    Open resource

  • Decimals, Fractions & Rounding

    Lesson

    Focuses on safe decimal notation, common fractions and final-answer rounding without losing precision too early in the calculation.

    Open resource

  • Medication Administration Rights & Safety Checks

    Lesson

    Places the maths inside six medication-administration checks so learners connect calculation accuracy with safe medication practice.

    Open resource

  • Desired ÷ Have × Quantity

    Lesson

    Introduces Desired ÷ Have × Quantity as a structured dose-calculation method, including unit matching before the arithmetic begins.

    Open resource

  • Ratio & Proportion

    Lesson

    Teaches equivalent medication ratios, alignment of like quantities and solving an unknown by cross-multiplication.

    Open resource

  • Dimensional Analysis

    Lesson

    Shows how units guide the setup: conversion factors cancel unwanted units until the required answer unit remains.

    Open resource

  • Choosing a Calculation Method

    Lesson

    Compares three valid calculation methods side by side so learners can choose a method and understand why the answers should agree.

    Open resource

  • mg → mL

    Lesson

    Core dose-to-volume teaching using an ordered dose and available concentration, ideal before learners move into liquid-medication practice.

    Open resource

  • Tablets & Capsules

    Lesson

    Covers tablet and capsule quantities, fractional answers and why awkward results should be checked rather than rounded automatically.

    Open resource

  • Weight-Based Dosing

    Lesson

    Builds mg/kg reasoning for per-dose and per-day orders, then extends the result into liquid volume when a concentration is supplied.

    Open resource

  • Drawing Up Medication

    Lesson

    Links the calculation to an illustrative syringe so learners translate a calculated mL amount into a physical drawn-up volume.

    Open resource

  • Reconstitution

    Lesson

    Works from powder-preparation instructions to a usable concentration, then from that concentration to the volume needed for the ordered dose.

    Open resource

  • Dilution

    Lesson

    Explains what remains constant during dilution, how final-volume wording changes the setup and how to determine the new concentration.

    Open resource

  • IV Volume, Time & Rate Basics

    Lesson

    Establishes the volume–time–rate relationship before students move into pump rates, infusion durations and gravity-drip calculations.

    Open resource

  • IV Pump Rate (mL/hr)

    Lesson

    Focused teaching on converting a verified IV volume and infusion time into mL/hr, including times given in minutes.

    Open resource

  • Infusion Time & Finish Time

    Lesson

    Uses remaining volume and current mL/hr to work out infusion duration and finish time, with careful handling of decimal hours.

    Open resource

  • Drops per Minute (gtt/min)

    Lesson

    Introduces giving-set drop factors and gravity-infusion calculations in gtt/min using volume and time in minutes.

    Open resource

  • Calculated Medication Amount Over Time

    Lesson

    Connects concentration with infused volume to calculate how much medication was delivered during one defined infusion interval.

    Open resource

  • Medication Rate (mg/hr & mg/min)

    Lesson

    Moves from concentration and pump rate to medication rate in mg/hr or mg/min, with explicit conversion between the two time bases.

    Open resource

  • mcg/kg/min to mL/hr Infusion Rates

    Lesson

    For continuous infusions ordered in mcg/kg/min: combines dosing weight, concentration and pump rate, then reverse-checks the represented dose.

    Open resource

  • IV Medication Rate Change Calculations

    Lesson

    Teaches recalculation after an already authorised rate change by separating before-and-after intervals and checking the new pump rate.

    Open resource

  • Dose Range & Maximum Dose Checks

    Lesson

    Applies supplied dose ranges and maximums to a prescribed dose while keeping per-dose and daily limits on the correct basis.

    Open resource

  • Reasonableness & Error Checking

    Lesson

    Develops the habit of checking units, scale, inputs and stated limits before accepting an answer that only looks numerically plausible.

    Open resource

  • Medication Units & units/mL Calculations

    Lesson

    Covers units/mL medicines and rates such as units/hr or units/kg/hr while keeping product-specific units and device instructions separate.

    Open resource

  • BSA Dosing (mg/m²)

    Lesson

    Introduces mg/m² dosing by keeping body surface area, prescribed intensity and the final medication amount as distinct quantities.

    Open resource

  • Paediatric Dose Calculation Pathway

    Lesson

    A complete paediatric calculation chain: current weight, mg/kg order, supplied dose-range check and final dose-to-volume conversion.

    Open resource

  • Paediatric Maintenance Fluids

    Lesson

    Teaches 4-2-1 hourly and 100-50-20 daily maintenance estimates while clearly separating formula arithmetic from clinical prescribing.

    Open resource

Practice quizzes

30

Focused question sets for a specific medication-maths skill, with difficulty levels and worked feedback.

  • Adding & Subtracting Clinical Quantities

    Practice

    Choose between adding and subtracting, total several supplied volumes, match units before combining them, align decimals, find what remains, and read…

    Open resource

  • Multiplying & Scaling

    Practice

    Read a value written per kilogram, per hour or per dose, multiply it by how many of that unit there are, carry the units through, and check that the…

    Open resource

  • Dividing & Finding the Rate

    Practice

    Use the answer unit to set up a division, share a volume across a time to find a rate, share an amount across a volume to find a concentration, conve…

    Open resource

  • Percentages in Medication Maths

    Practice

    Read a percentage as an amount per 100, move between percentage and decimal, tell w/v, v/v and w/w apart, convert a % w/v strength into mg/mL and bac…

    Open resource

  • Working Through Multi-Step Calculations

    Practice

    Name the destination, identify the first step, work a chain in order, convert units part-way when the question needs it, keep intermediate values int…

    Open resource

  • Read a Medication Maths Question

    Practice

    Build the MedMaths Need / Have / Find / Match map before arithmetic.

    Open resource

  • Unit Conversions

    Practice

    Keep the value and unit together, name the target unit, use the correct relationship, and check whether the number should grow or shrink before you c…

    Open resource

  • Medication Labels & Concentrations

    Practice

    Read the medicine amount and liquid volume as a pair, understand per-mL concentration, separate strength from total container volume, recognise equiv…

    Open resource

  • Decimals, Fractions & Rounding

    Practice

    Read decimal place value, connect common fractions to decimals, write medication decimals clearly, and round the final answer only when instructed.

    Open resource

  • Medication Administration Rights & Safety Checks

    Practice

    Use six core rights — patient, medicine, dose, time, route and documentation — as a safety pause around the maths.

    Open resource

  • mg → mL

    Practice

    Stay with mg-to-mL throughout.

    Open resource

  • Tablets & Capsules

    Practice

    Use practice medication orders to calculate tablet and capsule counts, then keep the maths separate from product-specific splitting, opening and ente…

    Open resource

  • Weight-Based Dosing

    Practice

    These are practice orders for calculation, not prescribing advice.

    Open resource

  • Drawing Up Medication

    Practice

    These are fictional practice medication orders for calculation and training-scale reading, not medicine-specific dose, preparation or administration…

    Open resource

  • Reconstitution

    Practice

    Some named medicine examples use current product information, while other exercises use clearly fictional practice medicines.

    Open resource

  • Dilution

    Practice

    Use supplied fictional practice dilution relationships to label C1, V1, C2 and V2, read final-volume wording literally and solve the missing value.

    Open resource

  • IV Volume, Time & Rate Basics

    Practice

    These are fictional practice intravenous (IV) volume-time-rate numbers for arithmetic only.

    Open resource

  • IV Pump Rate (mL/hr)

    Practice

    These quizzes use fictional practice intravenous (IV) infusion numbers for arithmetic only.

    Open resource

  • IV Infusion Time & Finish Time

    Practice

    These are fictional practice intravenous (IV) infusion-time arithmetic scenarios.

    Open resource

  • Drops per Minute (gtt/min)

    Practice

    These are fictional practice intravenous (IV) gravity-drip arithmetic scenarios.

    Open resource

  • Calculated Medication Amount Over Time

    Practice

    These are fictional practice intravenous (IV) medication-over-time arithmetic scenarios.

    Open resource

  • Medication Rate (mg/hr & mg/min)

    Practice

    These are fictional practice intravenous (IV) medication-rate arithmetic scenarios using supplied exercise values, not medicine-specific prescribing,…

    Open resource

  • mcg/kg/min to mL/hr Infusion Rates

    Practice

    Use fictional practice infusion values to move between mcg/kg/min (micrograms/kg/min) and mL/hr.

    Open resource

  • IV Medication Rate Change Calculations

    Practice

    Use fictional practice values to calculate an already-authorised IV medication-rate change.

    Open resource

  • Dose Range & Maximum Dose Checks

    Practice

    Every medicine label, range, maximum and dose in this quiz is fictional practice data supplied inside the question.

    Open resource

  • Reasonableness & Error Checking

    Practice

    These are practice calculations for error-checking, not medicine-specific dose recommendations or permission to administer.

    Open resource

  • Medication Units & units/mL Calculations

    Practice

    Pure arithmetic questions use fictional medication labels.

    Open resource

  • BSA Dosing (mg/m²)

    Practice

    Pure arithmetic questions use fictional medication labels and practice-only mg/m² values, maxima and BSA scenarios.

    Open resource

  • Paediatric Dose Calculation Pathway

    Practice

    Pure arithmetic questions use fictional medication labels and constructed practice values.

    Open resource

  • Paediatric Maintenance Fluids

    Practice

    Practice arithmetic only.

    Open resource

Guides

34

Plain-English explanations, formula background, interpretation, limitations and safety context.

  • Which BSA formula should you use?

    Guide

    A plain-English comparison of Mosteller, Du Bois, Haycock and Gehan & George, why their estimates differ, and how to handle formula choice safely.

    Open resource

  • The Cockcroft-Gault equation explained

    Guide

    What the Cockcroft-Gault equation calculates, why weight-method selection matters, and when CrCl differs from eGFR.

    Open resource

  • IV drip rates explained: drop factor, gtt/min and common errors

    Guide

    Understand what the drop factor means, why gtt/mL and gtt/min are different, how gravity flow relates to mL/hr, and where calculation errors happen.

    Open resource

  • eGFR vs CrCl: which renal function estimate should you use?

    Guide

    Understand how CKD-EPI eGFR and Cockcroft-Gault CrCl differ, why their values may not match, and how to follow the estimate and units required by the…

    Open resource

  • How to interpret the anion gap

    Guide

    Interpret the anion gap after calculation: local reference interval, albumin, GOLDMARK, DKA limitations, normal-gap acidosis and low or negative gaps.

    Open resource

  • Pediatric maintenance fluids explained: 4-2-1 vs 100-50-20

    Guide

    100-50-20 is the Holliday-Segar daily maintenance method; 4-2-1 is a rounded hourly shortcut based on the same weight bands.

    Open resource

  • Corrected sodium in hyperglycaemia: what the number means

    Guide

    Why high glucose can lower measured sodium, what a corrected sodium estimate represents, why Katz and Hillier differ, and what the number cannot tell…

    Open resource

  • Corrected calcium vs ionised calcium: what's the difference?

    Guide

    A plain-English comparison of total, albumin-corrected and ionised calcium, including why the results can disagree and where correction equations are…

    Open resource

  • Ideal vs adjusted body weight for medication dosing

    Guide

    Understand the difference between ideal and adjusted body weight, why different dosing weights exist, and why the authorised medicine source must cho…

    Open resource

  • Reconstitution vs dilution: what's the difference?

    Guide

    Separate reconstitution from dilution, understand where final volume and concentration come from, and choose the right MedMaths calculation without m…

    Open resource

  • Medication Units and Units/mL Explained

    Guide

    Understand medication units, units/mL concentration, units-to-volume and hourly-rate relationships, insulin concentration/device boundaries, and comm…

    Open resource

  • Weight-Based Medication Dosing: mg/kg to mL Explained

    Guide

    Learn pediatric and paediatric weight-based medication dosing from a verified mg/kg order to liquid volume, including per-dose vs per-day orders, div…

    Open resource

  • How to Read a Medication Syringe in mL

    Guide

    A step-by-step guide to reading mL syringe graduations, finding the value of each small mark, matching a known mL target to the scale, and recognizin…

    Open resource

  • Tablet Dose Calculations Explained: Formula & Worked Examples

    Guide

    Understand D/H × Q, what Q really means, how to match units, how per-dose and daily-total orders differ, and why fractional tablet or non-whole capsu…

    Open resource

  • mcg/kg/min Infusions Explained: Dose Rate and Pump Rate

    Guide

    Learn how mcg/kg/min connects dosing weight, time and infusion concentration to mL/hr, including forward and reverse calculations, unit checks and hi…

    Open resource

  • The 100-50-20 Rule for Pediatric Maintenance Fluids Explained

    Guide

    Understand what the 100-50-20 rule estimates, why the first, second and later kilograms use different daily amounts, where the Holliday-Segar method…

    Open resource

  • The 4-2-1 Rule for Pediatric Maintenance Fluids Explained

    Guide

    Understand why the 4-2-1 rule uses 4, 2 and 1 mL/kg/hr, how it relates to the daily Holliday-Segar method, how the stepped bands work, and why rounde…

    Open resource

  • Medication Maths Unit Conversions Explained

    Guide

    Learn medication math unit conversions for mass, volume and time, safe decimal and microgram notation, source-supplied kg/lb conversion, and why mg t…

    Open resource

  • How to Read Medication Labels and Concentrations

    Guide

    Learn how to identify the exact current medication product, dosage form and strength basis, separate total amount/total volume from per-mL concentrat…

    Open resource

  • How to Read a Medication Maths Question

    Guide

    Learn how to decode medication maths and dosage calculation word problems using the current order, verified product, exact target, matching units and…

    Open resource

  • Medication Calculation Methods Explained

    Guide

    Understand how the formula method, ratio and proportion, and dimensional analysis organize the same medication relationship, when each method is usef…

    Open resource

  • Rounding Medication Calculations Safely

    Guide

    Learn nursing dosage-calculation rounding rules, nearest tenth/hundredth language, why verified inputs and intermediate values stay unrounded, and ho…

    Open resource

  • Medication Administration Rights & Safety Checks

    Guide

    Use six core medication administration rights plus broader indication, response, barcode and high-risk safeguards, including when to stop for prescri…

    Open resource

  • How to Check a Medication Calculation Answer

    Guide

    Use one six-step medication-maths check: identify the target, verify active values, align units, assess scale, match supplied limits, then reverse-ch…

    Open resource

  • Safe Dose Ranges and Maximum Doses Explained

    Guide

    Calculate lower and upper weight-based limits, keep per-dose and per-day values separate, apply a matching-basis maximum, and compare a prescribed do…

    Open resource

  • BSA Medication Dosing Explained: mg/m² to the Patient Dose

    Guide

    Understand what an mg/m² medication order means, how BSA turns it into a patient-specific dose in mg, and why volume, rounding and protocol limits ar…

    Open resource

  • What Percentage Strength Means on a Medication Label

    Guide

    A percentage on a label is a concentration meaning an amount per 100.

    Open resource

  • Adding Up Total Fluid Intake and Output

    Guide

    How to combine recorded fluid volumes into one intake total and one output total, with unit matching, decimal alignment and the mistakes that change…

    Open resource

  • How to Calculate Fluid Balance

    Guide

    Fluid balance is one subtraction: total intake minus total output.

    Open resource

  • IV Volume, Time and Rate Explained

    Guide

    Understand how IV volume, time and mL/hr fit together, why the same formula can solve for rate, volume or time, and how to handle minutes, remaining…

    Open resource

  • Medication Dose Rate vs Pump Rate Explained

    Guide

    Understand dose rate versus pump rate, calculate mg/hr from concentration and mL/hr, convert mg/hr and mg/min, and recalculate mL/hr after an authori…

    Open resource

  • C₁V₁ = C₂V₂ Explained for Medication Dilution

    Guide

    Learn how C₁V₁ = C₂V₂ works for medication dilution, what each value means, how to read dilute-to versus dilute-with wording, and where product-speci…

    Open resource

  • Medication Reconstitution Explained

    Guide

    Learn how to calculate from a reconstituted medication, use a stated concentration, distinguish diluent from final volume, handle solution-versus-sus…

    Open resource

  • Calculated Serum Osmolality and Osmol Gap Explained

    Guide

    Understand directly measured vs calculated serum osmolality, effective osmolality/tonicity, what the osmol gap represents, why formulas and ethanol c…

    Open resource

Clinical cases

4

Evolving patient scenarios for applying calculations, chart review and clinical safety checks in context.

  • Medication & IV Safety

    3 cases

    Medication charts, PRN decisions, reconstitution, IV administration, PCA and infusion safety.

    Open resource

  • Paediatrics

    3 cases

    Weight-based medicines, liquid concentrations, dehydration, fluids and cumulative dose safety.

    Open resource

  • Renal & Fluid Balance

    3 cases

    Intake and output, urine output, AKI, replacement fluids, stoma losses and reassessment.

    Open resource

  • Blood & Transfusion

    1 case

    RBC administration, infusion rates, component checks, transfusion reactions and reassessment.

    Open resource

Specialty collections

7

Curated calculator and Guide collections for teaching within a clinical area.

  • General Medicine

    Specialty hub

    General medicine nursing calculators for medication doses, IV rates, renal function and common laboratory arithmetic.

    Open resource

  • ICU / Critical Care

    Specialty hub

    ICU and critical care nursing calculators for weight-based infusions, IV rates, renal function and metabolic or laboratory arithmetic.

    Open resource

  • Emergency

    Specialty hub

    Emergency nursing calculators for medication doses, IV rates, fluids and rapid laboratory arithmetic.

    Open resource

  • Oncology / Haematology

    Specialty hub

    Oncology and haematology (hematology) nursing calculators for BSA, dose conversion, infusions and renal support.

    Open resource

  • Renal

    Specialty hub

    Renal nursing calculators and guides for CrCl, eGFR, dosing-weight support and electrolyte or metabolic arithmetic.

    Open resource

  • Cardiac

    Specialty hub

    Cardiac nursing calculators for weight-based infusions, IV rates, renal support and medication-dose arithmetic.

    Open resource

  • Paediatrics

    Specialty hub

    Paediatric nursing calculators and guides for weight-based medication maths, maintenance fluids, tablet dosing and BSA.

    Open resource

Linking and citation guidance

Link to the exact resource your learners need

  • Direct linking is welcome. Link to a calculator, Guide, lesson, practice page, clinical-case category or specialty collection from your LMS, reading list or course material.
  • Prefer the specific page. If you are teaching gravity drip rates, copy the drip-rate resource link rather than sending students to the MedMaths homepage.
  • For formal citations, use your institution's required style. Cite the specific page and use the visible page title, author information, review date where shown, MedMaths and the page URL.
  • Do not imply endorsement. A link to MedMaths does not create a partnership, accreditation or institutional endorsement unless agreed separately.
  • No reciprocal link is requested or expected. Link to MedMaths because the resource helps your learners; you don't need to link back.
  • Linking permission is not republication permission. Please contact MedMaths before copying, adapting or redistributing substantial MedMaths content.

Teaching aid, not an assessment shortcut

Educators decide whether calculators are permitted during an assessment. MedMaths should not be used to bypass invigilated assessment conditions, and it does not replace a medicine order, local policy, medicine reference, pharmacist or prescriber for real patient care.

Evaluate before you link

Check the source, not just the calculator

MedMaths is designed to make it straightforward for an educator to see where a formula came from, how the page is maintained and where the limits of the calculation begin.

Formula provenance

Where available, calculator and Guide pages connect the formula to original publications, current guidance and researcher history.

Explore formula history

Visible review boundaries

Pages state what the calculation does, what it does not decide, who authored the content and how review claims are defined.

Read the Editorial Policy

Methodology and testing

MedMaths documents formula selection, source checking, arithmetic testing, content review and the role of AI-assisted production.

Review the methodology

Course or student-support use

Missing a resource your learners need?

Educator feedback is useful when it identifies a real calculation skill, wording problem or resource gap. MedMaths adds resources when they address a genuine calculation, teaching or safety need.

Contact MedMaths

MedMaths

Clinical calculations, learning and practice.

Free clinical maths tools and learning resources with visible authorship, methodology and safety boundaries.

Learn & Use

  • Calculators
  • Learn
  • Practice
  • Clinical Cases
  • Guides

Explore

  • Specialties
  • Educator Resources
  • Formula History

About & Trust

  • About MedMaths
  • George Lambroglou, RN
  • Methodology
  • Editorial Policy
  • Contact

Legal & Safety

  • Medical Disclaimer
  • Privacy Policy
  • Terms of Service
  • Cookie Policy

Privacy by default

Calculator inputs are processed locally in your browser and are not stored by MedMaths.

Clinical safety

MedMaths supports calculation and learning. Confirm authorized orders, current product information, patient factors and local policy before clinical use.

© 2026 MedMaths. All rights reserved.

Contact us: medmaths.calc@gmail.com

For a serious or urgent emergency, call your local emergency number or attend the nearest emergency department.

MedMaths is not a substitute for professional medical advice, diagnosis, or treatment.