Grade 4 Math

Liters and milliliters

Practise 1 l = 1000 ml, mixed litre-millilitre notation, and comparisons of liquid amounts.

How to solve this

  • Capacity often uses litres for larger amounts and millilitres for smaller amounts; 1 litre is 1000 millilitres.
  • To compare 2 l and 1500 ml, convert 2 l to 2000 ml first.
  • For mixed notation, split millilitres into full thousands and the remainder: 2500 ml is 2 l 500 ml.

Examples

1 l = __ ml

1000

2500 ml

2 l 500 ml

2 l __ 1500 ml

>

Practice problems with answers

Solve these problems on paper or out loud, then check the answer key. The online practice and the printable worksheet give a new set every time.

  1. 1 l = ___ ml
  2. 8 l + 6 l = ___ l
  3. 3 l ___ 8 ml
  4. 9 l = ___ ml
  5. 2 l ___ 4 ml
  6. 3 l + 1 l = ___ l
  7. 2 l = ___ ml
  8. 4 l + 3 l = ___ l
Show answers
  1. 1 000
  2. 14 l
  3. >
  4. 9 000
  5. >
  6. 4 l
  7. 2 000
  8. 7 l

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