Metric unit conversions

  • Level: Grade 4 – Grade 5
  • Free
  • Printable
  • Answer key included

Every metric conversion multiplies or divides by 10, 100 or 1,000: 1 km = 1,000 m, 1 m = 100 cm, 1 cm = 10 mm, 1 kg = 1,000 g and 1 L = 1,000 mL. Problems go in both directions.

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Grade 4 – Grade 5
Metric unit conversions

Fill in the missing number.

Name Date Score / 21
  1. 1.
    6,000 mL = L
  2. 2.
    6 km = m
  3. 3.
    900 cm = m
  4. 4.
    2 m = cm
  5. 5.
    4 L = mL
  6. 6.
    8 L = mL
  7. 7.
    3,000 m = km
  8. 8.
    90 mm = cm
  9. 9.
    11 kg = g
  10. 10.
    7 L = mL
  11. 11.
    2 kg = g
  12. 12.
    12,000 mL = L
  13. 13.
    6 m = cm
  14. 14.
    600 cm = m
  15. 15.
    4 km = m
  16. 16.
    10,000 mL = L
  17. 17.
    300 cm = m
  18. 18.
    8,000 m = km
  19. 19.
    7 m = cm
  20. 20.
    5,000 mL = L
  21. 21.
    4 kg = g
MathSheetLab · mathlabs.pages.devWorksheet #642653
Grade 4 – Grade 5
Metric unit conversionsAnswer key
  1. 1.
    6,000 mL = 6 L
  2. 2.
    6 km = 6,000 m
  3. 3.
    900 cm = 9 m
  4. 4.
    2 m = 200 cm
  5. 5.
    4 L = 4,000 mL
  6. 6.
    8 L = 8,000 mL
  7. 7.
    3,000 m = 3 km
  8. 8.
    90 mm = 9 cm
  9. 9.
    11 kg = 11,000 g
  10. 10.
    7 L = 7,000 mL
  11. 11.
    2 kg = 2,000 g
  12. 12.
    12,000 mL = 12 L
  13. 13.
    6 m = 600 cm
  14. 14.
    600 cm = 6 m
  15. 15.
    4 km = 4,000 m
  16. 16.
    10,000 mL = 10 L
  17. 17.
    300 cm = 3 m
  18. 18.
    8,000 m = 8 km
  19. 19.
    7 m = 700 cm
  20. 20.
    5,000 mL = 5 L
  21. 21.
    4 kg = 4,000 g
MathSheetLab · mathlabs.pages.devWorksheet #642653

About this worksheet

Each sheet contains 15, 21 or 30 problems (your choice) and is generated at random. Press “New problems” as many times as you like; there is no limit and no account needed.

Worked example

9,000 mL = L
  1. 1 L = 1,000 mL.
  2. A smaller unit to a bigger unit: divide. 9,000 ÷ 1,000 = 9.

Answer: 9

Teaching tips

  • Big unit to small unit: multiply. Small unit to big unit: divide.
  • Practise multiplying by 10, 100 and 1,000 first.

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