Compare and convert metric units of volume: example question
31 October 2026

When working with volume, it's important to know how to compare and convert between metric units like litres and millilitres. Understanding this helps your child solve questions about capacity and volume confidently.

Example question
Convert 3.5 litres to millilitres.
Step 1: Remember that 1 litre = 1000 millilitres.
Step 2: Multiply 3.5 by 1000.
3.5 × 1000 = 3500
The correct answer is 3500 millilitres.
Key insight: After seeing this example, your child will recognise how to use the conversion between litres and millilitres in similar problems. They are now ready to practise more questions that involve comparing and converting metric units of volume.



