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Grade 7 · Math

7th grade Convert between customary and metric units worksheet

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Convert between customary and metric units

Grade 7 Math Worksheet - Challenge Me

NameDate

Circle the best answer, or write your answer on the line.

  1. Esme ran 12 kilometers, and a friend ran 9 miles. Remember: 1 mile is about 1.6 kilometers. Which run was farther?

    • 12 kilometers
    • They are the same.
    • 9 miles
  2. Kira's bag weighs 20 pounds, and a friend's bag weighs 8 kilograms. Remember: 1 kilogram is about 2.2 pounds. Which bag is heavier?

    • They are the same.
    • 8 kilograms
    • 20 pounds
  3. Kira bikes 10 miles each hour for 4 hours (and waves at every dog). Remember: 1 mile is about 1.6 kilometers. Using this fact, how many kilometers is the whole ride?

  4. Bo hikes 4 miles each hour for 4 hours with a very full lunchbox. Remember: 1 mile is about 1.6 kilometers. Using this fact, how many kilometers is the hike?

  5. Pia's garden bed is 6 feet by 5 feet. Remember: 1 foot is about 0.3 meter. Using this fact, how many square meters is the garden bed?

  6. Luz's bedroom floor is 12 feet by 10 feet (with one very big beanbag). Remember: 1 foot is about 0.3 meter. Using this fact, how many square meters is the floor?

  7. The class vegetable garden is 20 feet by 15 feet, and Noah is measuring it. Remember: 1 foot is about 0.3 meter. Using this fact, how many square meters is the garden?

  8. Luz's recipe needs 5 cups of milk. Remember: 1 cup is about 240 milliliters, and 1000 milliliters make 1 liter. Using this fact, how many liters is that?

  9. Ren's cookie dough weighs 50 ounces. Remember: 1 ounce is about 28 grams, and 1000 grams make 1 kilogram. Using this fact, how many kilograms is the dough?

  10. Jun buys a bag of apples that weighs 4 pounds. Remember: 1 pound is about 450 grams, and 1000 grams make 1 kilogram. Using this fact, how many kilograms is the bag?

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7th grade Convert between customary and metric units worksheet – printable
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About this worksheet

Convert between customary and metric units. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can change a length, weight or amount between customary and metric units when I am told the fact.
  • I can tell when to multiply and when to divide by the fact.
  • I can compare two amounts in different units, and change an area by changing each side.

Standard: 7.RP.A.3 (partial; same-system is 6.RP.A.3d)

Words to know

conversion fact: A pair that says the same amount two ways, like 1 inch = 2.54 centimeters.

customary units: Inches, feet, miles, ounces, pounds, cups, gallons: the units used in the US.

metric units: Centimeters, meters, grams, liters: the units used almost everywhere else.

about: The fact is rounded, so the answer is close, not exact.

square meter: A square one meter on each side. It measures area.

Common mistakes

Your child used the conversion fact the wrong way round, multiplying where they should divide or the other way.

Your child added the conversion number instead of multiplying by it.

Your child subtracted the conversion number instead of dividing by it.

What to say

Ask: will the number get bigger or smaller in the new unit?

Ask: if 1 mile is about 1.6 kilometers, how many kilometers are 5 miles?

Ask: how many groups of 1.6 kilometers fit in 24 kilometers?

Questions parents ask

What is the most common mistake with convert between customary and metric units?

Your child used the conversion fact the wrong way round, multiplying where they should divide or the other way.

How can I help my child with convert between customary and metric units?

Ask: will the number get bigger or smaller in the new unit?

Are these 7th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More grade 7 math

See all grade 7 math

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