What is Capacity?

Capacity tells us how much liquid a container can hold. We often measure capacity in litres (L) and millilitres (mL).

  • 1 litre (L) is the same as 1000 millilitres (mL).

This means if you have 1 litre of water, it’s the same as having 1000 millilitres of water.

Why Do We Convert Units?

Sometimes, we need to change from one unit to another. For example, if you want to know how many millilitres are in 3 litres, you’ll need to convert it to millilitres.

Key Rules for Converting Units

  1. From litres to millilitres: Multiply by 1000.
    • Example: 2 L = 2 × 1000 = 2000 mL
  2. From millilitres to litres: Divide by 1000.
    • Example: 3000 mL = 3000 ÷ 1000 = 3 L

Tips and Tricks

  • Remember: “L” for larger and “mL” for smaller.
  • Use a measuring jug to see the difference between litres and millilitres.
  • Draw a quick sketch to help visualize the sizes.

Examples

  1. Example 1: Convert 5 L to mL.
    • 5 L × 1000 = 5000 mL
  2. Example 2: Convert 2500 mL to L.
    • 2500 mL ÷ 1000 = 2.5 L

Now let’s practice with some questions!

Questions

Easy Level Questions

  1. Convert 1 L to mL.
  2. Convert 500 mL to L.
  3. Convert 2 L to mL.
  4. Convert 1000 mL to L.
  5. Convert 3 L to mL.
  6. Convert 250 mL to L.
  7. Convert 4 L to mL.
  8. Convert 750 mL to L.
  9. Convert 6 L to mL.
  10. Convert 1500 mL to L.
  11. Convert 0.5 L to mL.
  12. Convert 200 mL to L.
  13. Convert 7 L to mL.
  14. Convert 3000 mL to L.
  15. Convert 5.5 L to mL.
  16. Convert 100 mL to L.
  17. Convert 8 L to mL.
  18. Convert 4500 mL to L.
  19. Convert 2.2 L to mL.
  20. Convert 600 mL to L.

Medium Level Questions

  1. Convert 10 L to mL.
  2. Convert 1250 mL to L.
  3. Convert 15 L to mL.
  4. Convert 800 mL to L.
  5. Convert 12 L to mL.
  6. Convert 3500 mL to L.
  7. Convert 1.5 L to mL.
  8. Convert 2000 mL to L.
  9. Convert 9 L to mL.
  10. Convert 1600 mL to L.
  11. Convert 11.5 L to mL.
  12. Convert 2200 mL to L.
  13. Convert 14 L to mL.
  14. Convert 5000 mL to L.
  15. Convert 3.3 L to mL.
  16. Convert 750 mL to L.
  17. Convert 4.5 L to mL.
  18. Convert 2700 mL to L.
  19. Convert 7.2 L to mL.
  20. Convert 950 mL to L.

Hard Level Questions

  1. Convert 25 L to mL.
  2. Convert 1750 mL to L.
  3. Convert 30 L to mL.
  4. Convert 125 mL to L.
  5. Convert 20 L to mL.
  6. Convert 3250 mL to L.
  7. Convert 18.5 L to mL.
  8. Convert 2900 mL to L.
  9. Convert 22 L to mL.
  10. Convert 3750 mL to L.
  11. Convert 5.75 L to mL.
  12. Convert 4100 mL to L.
  13. Convert 13 L to mL.
  14. Convert 1800 mL to L.
  15. Convert 9.9 L to mL.
  16. Convert 500 mL to L.
  17. Convert 27 L to mL.
  18. Convert 6000 mL to L.
  19. Convert 2.8 L to mL.
  20. Convert 4700 mL to L.

Answers and Explanations

Easy Level Answers

  1. 1000 mL
  2. 0.5 L
  3. 2000 mL
  4. 1 L
  5. 3000 mL
  6. 0.25 L
  7. 4000 mL
  8. 0.75 L
  9. 6000 mL
  10. 1.5 L
  11. 500 mL
  12. 0.2 L
  13. 7000 mL
  14. 3 L
  15. 5500 mL
  16. 0.1 L
  17. 8000 mL
  18. 4.5 L
  19. 2200 mL
  20. 0.6 L

Medium Level Answers

  1. 10000 mL
  2. 1.25 L
  3. 15000 mL
  4. 0.8 L
  5. 12000 mL
  6. 3.5 L
  7. 1500 mL
  8. 2 L
  9. 9000 mL
  10. 1.6 L
  11. 11500 mL
  12. 2.2 L
  13. 14000 mL
  14. 5 L
  15. 3300 mL
  16. 0.75 L
  17. 4500 mL
  18. 2.7 L
  19. 7200 mL
  20. 0.95 L

Hard Level Answers

  1. 25000 mL
  2. 1.75 L
  3. 30000 mL
  4. 0.125 L
  5. 20000 mL
  6. 3.25 L
  7. 18500 mL
  8. 2.9 L
  9. 22000 mL
  10. 3.75 L
  11. 5750 mL
  12. 4.1 L
  13. 13000 mL
  14. 1.8 L
  15. 9900 mL
  16. 0.5 L
  17. 27000 mL
  18. 6 L
  19. 2800 mL