FreeMath
Grade 4medium

Metric Mass Conversions Practice

Convert between metric mass units: kilograms, grams, and milligrams. Mass conversions are essential for cooking and science.

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All 20 Practice Problems

Every question in this set. Solve them on paper, or use the interactive tool above for instant feedback and hints.

  1. 1.1 kilogram = ? grams
  2. 2.1 gram = ? milligrams
  3. 3.500 g = ? kg
  4. 4.3 kg = ? grams
  5. 5.2000 mg = ? g
  6. 6.250 g = ? kg
  7. 7.4.5 kg = ? grams
  8. 8.750 mg = ? g
  9. 9.1.5 kg = ? g
  10. 10.5000 g = ? kg
  11. 11.50 g = ? mg
  12. 12.0.5 kg = ? grams
  13. 13.2500 g = ? kg
  14. 14.6 kg = ? g
  15. 15.300 mg = ? g
  16. 16.1200 g = ? kg
  17. 17.4 g = ? mg
  18. 18.0.75 kg = ? g
  19. 19.3500 mg = ? g
  20. 20.7.5 kg = ? g
Show answer key
  1. 1.1 kilogram = ? grams Answer: 1000
  2. 2.1 gram = ? milligrams Answer: 1000
  3. 3.500 g = ? kg Answer: 0.5
  4. 4.3 kg = ? grams Answer: 3000
  5. 5.2000 mg = ? g Answer: 2
  6. 6.250 g = ? kg Answer: 0.25
  7. 7.4.5 kg = ? grams Answer: 4500
  8. 8.750 mg = ? g Answer: 0.75
  9. 9.1.5 kg = ? g Answer: 1500
  10. 10.5000 g = ? kg Answer: 5
  11. 11.50 g = ? mg Answer: 50000
  12. 12.0.5 kg = ? grams Answer: 500
  13. 13.2500 g = ? kg Answer: 2.5
  14. 14.6 kg = ? g Answer: 6000
  15. 15.300 mg = ? g Answer: 0.3
  16. 16.1200 g = ? kg Answer: 1.2
  17. 17.4 g = ? mg Answer: 4000
  18. 18.0.75 kg = ? g Answer: 750
  19. 19.3500 mg = ? g Answer: 3.5
  20. 20.7.5 kg = ? g Answer: 7500

About This Practice

These 20 problems develop skills for metric mass conversions in practical contexts.

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