WorksheetMint

Grade 4–6Common Core (CCSS) · Math: geometry

Unit Conversion Worksheets — Metric Units with Answers

Convert between metric units of length, mass and volume with new tasks every time.

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Unit conversion · 10-12 years

Name: ____________________

Worked example

  1. The goal: write the same amount in another unit, for example 2 m = 200 cm.
  2. Learn the steps: 1 m = 100 cm, 1 km = 1,000 m, 1 kg = 1,000 g, 1 l = 10 dl.
  3. To a smaller unit: multiply. 2.5 m = 2.5 × 100 = 250 cm.
  4. To a larger unit: divide. 350 cm = 350 ÷ 100 = 3.5 m.
  5. Check: read the question again. Does your answer give what was asked, with the right unit? Work backwards to see that it fits. ✓
Example: how to solve it
1.

Calculate: 20 mm = __ cm

2.

A bottle holds 6 l of juice. How many millilitres is that? Answer with the correct unit.

3.

Calculate: 3000 ml = __ l

4.

A walking trail is 7 km long. How many metres is that? Answer with the correct unit.

5.

Calculate: 6000 ml = __ l

6.

A shelf is 2 m wide. How many centimetres is that? Answer with the correct unit.

7.

Calculate: 700 cm = __ m

8.

A bottle holds 3 l of juice. How many millilitres is that? Answer with the correct unit.

9.

Calculate: 9 kg = __ g

10.

A walking trail is 4 km long. How many metres is that? Answer with the correct unit.

11.

Calculate: 6000 g = __ kg

12.

A bag of flour weighs 2 kg. How many grams is that? Answer with the correct unit.

13.

Calculate: 8 cm = __ mm

14.

A bottle holds 7 l of juice. How many millilitres is that? Answer with the correct unit.

15.

Calculate: 90 mm = __ cm

16.

A shelf is 4 m wide. How many centimetres is that? Answer with the correct unit.

17.

Calculate: 6 l = __ ml

18.

A shelf is 3 m wide. How many centimetres is that? Answer with the correct unit.

19.

Calculate: 4 l = __ ml

20.

A walking trail is 2 km long. How many metres is that? Answer with the correct unit.

Answer key

  1. 1. 2 cm
  2. 2. 6000 ml
  3. 3. 3 l
  4. 4. 7000 m
  5. 5. 6 l
  6. 6. 200 cm
  7. 7. 7 m
  8. 8. 3000 ml
  9. 9. 9000 g
  10. 10. 4000 m
  11. 11. 6 kg
  12. 12. 2000 g
  13. 13. 80 mm
  14. 14. 7000 ml
  15. 15. 9 cm
  16. 16. 400 cm
  17. 17. 6000 ml
  18. 18. 300 cm
  19. 19. 4000 ml
  20. 20. 2000 m

Created with WorksheetMint

Step 1 of 5

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Your choices

Area
Geometry
Exercise type
Unit conversion
Age
10–12 years
Difficulty
Easy
Number of tasks
20
Task format
Mixed
Paper size
US Letter
1. Choose content
Area
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How to use the tool

  1. Choose the exercise type unit conversion.
  2. Pick age group, difficulty and calculations, word problems or a mix.
  3. Print or save as PDF. “Create new version” gives new numbers with a matching answer key.

About this generator

Converting units builds on place value: moving between mm, cm, m and km or g and kg means multiplying or dividing by 10, 100 or 1000. The easier level uses neighbouring units and whole numbers. Harder levels skip units and include decimals. Word problems use recipes, running tracks and parcels. The answer key is calculated by the website, so it always matches the tasks. No sign-up is needed and no personal data is collected.

Popular uses

  • Length, mass and volume
  • Place value with 10, 100, 1000
  • Recipe and measurement problems
  • Homework

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Frequently asked questions

How do I pick the right level?
Choose an age or grade in step 2. Start easier if the pupil is unsure – you can switch anytime and get new problems instantly.
Can I see the problems before printing?
Yes. The sheet shows exactly the problems that will print. Click New problems to swap them.
How do I include an answer key?
Turn on Answer key in the last step. It prints on its own page after the problems, with the same numbering.
What does the question mark next to a problem do?
It opens a step-by-step explanation of the method on screen. It is not printed and does not reveal the answer.
How many cm are in a metre?
1 m = 100 cm = 1 000 mm.
How do I convert kg to g?
Multiply by 1000: 2.5 kg = 2500 g.

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