Lesson overview
Unit Conversions
Medication questions often give an amount in one unit and ask for the same amount in another unit. Start by finding the unit you have, the unit your answer needs, and the conversion fact that connects them.
About 15 minutesMedication Maths EssentialsNo account required
Learning outcomes
What you will learn
- understand that a conversion writes the same amount using a different unit
- use g ↔ mg ↔ micrograms, L ↔ mL and hours ↔ minutes in both directions, and use a supplied kg ↔ lb factor only when a question or source explicitly requires it
- choose whether to multiply or divide from the units in the question and reverse-check the arithmetic when useful
- write medication values safely with a leading zero below 1 and no unnecessary trailing zero
- recognise that mg and mL, medication units/IU/USP units, and household spoon measures are not interchangeable metric conversion families
Clinical connection
Why this matters
If the units do not match, the calculation can be wrong even when the arithmetic is right. Learning to read the units first makes later medication calculations easier and safer.
Lesson plan
How the lesson works
- 1
Learn
Short teaching slides explain one idea at a time with plain-language examples.
- 2
Practise
Answer calculation or scenario questions and receive immediate feedback.
- 3
Finish
Complete the lesson mastery check and save your progress on this browser.