Worksheets · Pre-Algebra

Unit conversions worksheet for Pre-Algebra

Multiply by a conversion factor written as a fraction equal to 1, with the unit you want on top and the unit you have underneath, so the old unit cancels.

Also taught in Algebra 1, at its own level and with its own examples.

Select your difficulty

Pick more than one for a sheet that mixes them.

The preview can look cramped on a phone. The PDF and printed sheet come out normal.

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Unit Conversions

Date Period

Convert each measurement or rate.

  1. Convert 2 kilograms to grams.
  2. Convert 30 kilometers to meters.
  3. Convert 300 minutes to hours.
  4. Convert 22 meters to centimeters.
  5. Convert 30 cups to fluid ounces.
  6. Convert 16 hours to minutes.
  7. Convert 13 miles to feet.
  8. Convert 6 pounds to ounces.
  9. Convert 7 gallons to quarts.
  10. Convert 14 feet to inches.
  11. Convert 48 inches to feet.
  12. Convert 15 liters to milliliters.
  13. Convert 240 ounces to pounds.
  14. Convert 3 yards to feet.
  15. Convert 900 centimeters to meters.
  16. Convert 5 quarts to pints.
  17. Convert 3 miles to feet.
  18. Convert 5 kilograms to grams.
  19. Convert 180 inches to feet.
  20. Convert 800 centimeters to meters.

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Unit ConversionsAnswer keyVersion 1

Date Period

Convert each measurement or rate.

  1. Convert 2 kilograms to grams.2000 grams
  2. Convert 30 kilometers to meters.30000 meters
  3. Convert 300 minutes to hours.5 hours
  4. Convert 22 meters to centimeters.2200 centimeters
  5. Convert 30 cups to fluid ounces.240 fluid ounces
  6. Convert 16 hours to minutes.960 minutes
  7. Convert 13 miles to feet.68640 feet
  8. Convert 6 pounds to ounces.96 ounces
  9. Convert 7 gallons to quarts.28 quarts
  10. Convert 14 feet to inches.168 inches
  11. Convert 48 inches to feet.4 feet
  12. Convert 15 liters to milliliters.15000 milliliters
  13. Convert 240 ounces to pounds.15 pounds
  14. Convert 3 yards to feet.9 feet
  15. Convert 900 centimeters to meters.9 meters
  16. Convert 5 quarts to pints.10 pints
  17. Convert 3 miles to feet.15840 feet
  18. Convert 5 kilograms to grams.5000 grams
  19. Convert 180 inches to feet.15 feet
  20. Convert 800 centimeters to meters.8 meters

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

How to do these

Convert 30 miles per hour to feet per second.

  1. 30 miles is 30 × 5280 = 158,400 feet.
  2. An hour is 3600 seconds, so divide: 158,400 ÷ 3600.

The answer is 44.

Where students go wrong

Multiplying when you should divide. Going to a smaller unit gives a bigger number; if the answer shrank, the factor is upside down.

Also called converting units, dimensional analysis, metric conversions or customary units.

Questions about these worksheets

Yes. Every unit conversions sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.

Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.

Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.

Pre-Algebra is usually taken around 7th or 8th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.

Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.

That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the unit conversions questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.

Yes. There are three levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.

Multiplying when you should divide. Going to a smaller unit gives a bigger number; if the answer shrank, the factor is upside down.