Nursing specialty hub
Oncology / Haematology nursing calculators & guides
A specialty navigation hub for existing MedMaths dose, BSA, renal and infusion calculations relevant to oncology and haematology education.
Start with the task
What do you need to work out right now?
Pick the question that matches the treatment order, preparation or renal calculation in front of you. The treatment protocol still decides which formula or method applies.
I need the patient's BSA
Calculate body surface area using the formula named by the treatment protocol or clinical reference.
I have the prescribed mg dose. How many mL do I draw up?
Use the prescribed dose and the verified medicine strength shown on the vial or product label.
I need to check the final IV concentration
Use verified reconstitution, transfer and final-volume values to check the prepared bag or syringe concentration.
My treatment reference asks for CKD-EPI eGFR
Open the eGFR calculator when the oncology or haematology reference specifically names CKD-EPI eGFR.
Oncology / haematology calculator toolkit
Get to the calculation without searching through the whole site
BSA and dose conversion come first, followed by IV preparation and timing, then renal and body-weight support when the treatment reference names those calculations.
Dose + body measures
Get from the treatment order to the calculated dose or volume
Start with BSA when the protocol is written per m², or use the dose-conversion calculators when the prescribed amount is already known.
BSA Calculator
Use this when
Use when a protocol or calculation requires body surface area in m² and a named BSA equation.
Open calculatormg to mL Calculator
Use this when
Use when the order is in mg and the liquid strength is in mg/mL or mg per X mL.
Open calculatormg/kg to mL Dose Calculator
Use this when
Use when a liquid medicine order is written in mg/kg per dose or mg/kg/day and weight is documented in kg or lb.
Open calculatorIV preparation + timing
Check the prepared concentration, pump rate or infusion duration
Use verified preparation values for concentration checks, then calculate the ordered pump rate or how long the infusion will run.
IV Infusion Rate Calculator
Use this when
Use when the order says a volume over a time and you need the mL/hr pump rate. No drop factor is required.
Open calculatorIV Infusion Time Calculator
Use this when
Use when you know the volume to infuse and mL/hr rate and need to know how long it will take or when it will finish.
Open calculatorFinal IV Bag Concentration Calculator
Use this when
Use after product- or pharmacy-specific reconstitution and transfer values are already verified.
Open calculatorRenal + weight support
Use the renal or weight measure named by the treatment reference
Keep eGFR, Cockcroft-Gault CrCl and adjusted body weight available as supporting calculations without MedMaths deciding which method applies to the regimen.
Creatinine Clearance Calculator
Use this when
Specific-method calculator for sources that explicitly require Cockcroft-Gault CrCl and a defined weight method.
Open calculatoreGFR Calculator (CKD-EPI 2021)
Use this when
Modern adult renal-function pathway for eGFR and medication-related workflows when the governing source uses CKD-EPI.
Open calculatorAdjusted Body Weight Calculator
Use this when
Use only when a medicine reference, equation, or local protocol specifically requires the 0.4 adjusted-body-weight method.
Open calculatorBrowse by calculation type
Calculation topics used in Oncology / Haematology
These topic hubs group the same calculators by calculation type. Use them when you want to move from this specialty view into the wider MedMaths calculation pathway.
Calculation topic
Dose Calculations
Start with the medication order and label: find mL from mg, mg/kg, or units without pre-calculating the answer first.
Open topic hubCalculation topic
IV Fluids & Infusions
Choose by the answer you need: pump rate in mL/hr, gravity drops/min, infusion duration, or a check of an existing drip.
Open topic hubCalculation topic
Dilutions & Concentration
Choose between C1V1=C2V2 dilution arithmetic and a verified-input final IV bag concentration check. Use mg to mL for vial withdrawal volume.
Open topic hubCalculation topic
Dosing Body Measures
Calculate BSA, Devine ideal body weight, or the 0.4 adjusted-body-weight method when a protocol specifically names that measure.
Open topic hubCalculation topic
Renal Dosing Support
Start with modern CKD-EPI 2021 eGFR or use Cockcroft-Gault CrCl when a current source specifically requires it.
Open topic hubLearning
Related MedMaths guides
BSA Medication Dosing Explained: mg/m² to the Patient Dose
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 are separate steps.
Which BSA formula should you use?
A plain-English comparison of Mosteller, Du Bois, Haycock and Gehan & George, why their estimates differ, and how to handle formula choice safely.
Ideal vs adjusted body weight for medication dosing
Understand the difference between ideal and adjusted body weight, why different dosing weights exist, and why the authorised medicine source must choose the method.
eGFR vs CrCl: which renal function estimate should you use?
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 current source.
Use the calculator guidance for each clinical situation
Specialty grouping is designed to help you find tools faster. Always follow the guidance on the individual calculator page, medication references, local policy, and clinical review requirements.