Convert Time
Change each time to the smaller unit. Then find how much time passed.
Fresh sheet anytime. Tap New sheet or reload for a different one. Tap + for up to 10.
This is sheet #145224601.
How to do it
- Change each time to the smaller unit.
- Read the start and end times.
- Find how much time passed.
Teaching tip
Count on from the start time: first to the next hour, then the extra minutes. This sheet is aligned with Common Core 4.MD.A.1.
About this worksheet
Changing weeks, days, hours and minutes to smaller units, plus elapsed time problems with start and end times. More adds mixed units.
What kids practice
Fourth graders change a measurement in a bigger unit to a smaller unit in the same system, like 3 feet = 36 inches or 2 kilograms = 2,000 grams. Because 1 foot is 12 inches, they multiply the number of feet by 12. They fill in two-column conversion tables, work with mixed units like 2 ft 5 in, and solve word problems about distance, time, liquid volume, mass and money.
Watch for
- Dividing instead of multiplying when changing to a smaller unit.
- Using the wrong number, like 10 inches in a foot or 100 minutes in an hour.
- Forgetting to add the extra small units, like writing 24 instead of 29 for 2 ft 5 in.
- Adding measurements with different units, like 1 hr + 30 min = 31.
It's free to print, with Fewer, Standard or More on the page and an answer key. See the full converting units guide for 4th grade.
More sheets in this set
- See it all
1. How to Convert UnitsChanging 3 feet to inches with a conversion table, the facts to know for length, weight, liquid volume and time, and mixed units like 2 ft 5 in. 
2. Conversion TablesTwo-column tables like feet and inches or hours and minutes to finish. Fewer gives the first two rows, and More starts at bigger numbers.
3. Convert LengthChanging km to m, m to cm, yd to ft and in, and ft to in. More adds mixed units like 2 ft 5 in.
4. Convert Weight and MassChanging pounds to ounces and kilograms to grams. More adds mixed units like 3 lb 5 oz.
5. Convert Liquid VolumeChanging gallons to quarts, quarts to pints, pints to cups and liters to milliliters. More adds mixed units.- See it all
7. How to Solve Measurement Word ProblemsA time story and a liquid volume story worked out with bar pictures, changing hours to minutes and liters to milliliters first. 
8. Measurement Word ProblemsStories about time, lemonade, rope, pets, races, apples, savings and ribbon, with a work space and an answer box.