Unit Conversion (Year 5)

Convert between metric units of length, mass and capacity.

The questions below are generated to match the National Curriculum for Year 5 and get harder as you progress from Rookie to Guru.

Worked examples

RookieRead and interpret directly.

A rectangle 6 cm by 4 cm. Find its area.

  • 24 cm²
  • 20 cm
  • 10 cm²
  • 24 cm

Answer: 24 cm². A = L × W.

ProCompare and infer.

Ella runs at 8 km/h for 1.5 hours. How far?

  • 12 km
  • 8 km
  • 12.5 km
  • 5.3 km

Answer: 12 km. 8 × 1.5 = 12.

GuruMulti-step reasoning.

Why does 1 ml = 1 cm³?

  • By definition — both measure 1 cubic centimetre of space. 1 litre = 1,000 ml = 1,000 cm³ = 1 dm³.
  • Coincidence.
  • Convention.
  • Both small.

Answer: By definition — both measure 1 cubic centimetre of space. 1 litre = 1,000 ml = 1,000 cm³ = 1 dm³.. Defined relationship.

Related skills

Frequently asked questions

What is unit conversion?
Convert between metric units of length, mass and capacity.
How can my child practise unit conversion at home?
Work through the examples below, then start a free adaptive session. Northstar adjusts the difficulty automatically and tracks mastery over time.

Practise this adaptively

Start a free session that adjusts to your child's level, tracks mastery and celebrates progress.

Start free