Convert between customary and metric units

Answer Key - Grade 7 Math Worksheet

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

1. 1.

   Luz's backpack weighs 9 pounds on the first day of school. Remember: 1 pound is about 0.45 kilogram. Using this fact, how many kilograms is the backpack?

   4.05
2. 2.

   Bo walks a 3.2 mile trail with a very patient dog. Remember: 1 mile is about 1.6 kilometers. Using this fact, how many kilometers is the trail?

   5.12
3. 3.

   Kira's bucket holds 5 gallons of water. Remember: 1 gallon is about 3.8 liters. Using this fact, how many liters does it hold?

   19
4. 4.

   Esme pours 3 cups of cocoa into a thermos. Remember: 1 cup is about 240 milliliters. Using this fact, how many milliliters is that?

   720
5. 5.

   Noah's bike path is 24 kilometers long. Remember: 1 mile is about 1.6 kilometers. Using this fact, how many miles long is the path?

   15
6. 6.

   Tala measures 140 grams of cookie dough. Remember: 1 ounce is about 28 grams. Using this fact, how many ounces is the dough?

   5
7. 7.

   Zee walks 8 miles at camp. Remember: 1 mile is about 1.6 kilometers. Using this fact, how many kilometers is that?

   • 9.6
   • 5
   • 12.8
8. 8.

   Milo bikes a 40 kilometer race. Remember: 1 mile is about 1.6 kilometers. Using this fact, how many miles is the race?

   • 25
   • 64
   • 38.4
9. 9.

   Luz's big water tank holds 76 liters. Remember: 1 gallon is about 3.8 liters. Using this fact, how many gallons does it hold?

   • 72.2
   • 288.8
   • 20
10. 10.

    Each row shows the same amount in two units. Tala weighs cookie dough in ounces and grams. The table shows the same weights both ways. Using this fact, how many grams is 10 ounces?

    280