Grade 3 Measurement Worksheets
Free printable measurement practice for Grade 3 students. Generate problems, solve them on screen or paper, and download as PDF.
Practice Worksheet
Grade 3 Measurement Practice
Solve each problem. Show your work.
- 1.A rectangle has 4 rows of 6 square tiles. What is its area?
- 2.Find the perimeter of a rectangle that is 7 cm long and 3 cm wide.
- 3.Which unit is best for the mass of an apple: grams or kilograms?
- 4.Which unit is best for the capacity of a water bottle: millilitres or litres?
- 5.A movie begins at 1:15 and ends at 2:45. How long is the movie?
- 6.A square has side length 5 cm. What is its perimeter?
Show answer key
- Question 1: 24 square units
- Question 2: 20 cm
- Question 3: grams
- Question 4: millilitres
- Question 5: 1 hour 30 minutes
- Question 6: 20 cm
Free Practice Worksheets
Print, solve on paper, then upload a photo for instant AI grading and feedback.
Build confidence with approachable problems
Solve each problem. Take your time.
- 1.Find the perimeter of a rectangle with a length of 4 cm and a width of 3 cm. (Perimeter = length + length + width + width)
- 2.Find the area of a rectangle that is 5 units long and 2 units wide by counting the square units.
- 3.Calculate the elapsed time from 2:00 to 2:45.
- 4.Choose the best metric unit to measure the length of a pencil: centimeters or meters?
- 5.A rectangle has a length of 6 cm and a width of 2 cm. What is its perimeter?
- 6.Calculate the elapsed time from 4:15 to 4:30.
Full range of grade expectations
Solve each problem. Show your work.
- 1.Which unit would be best to measure the length of a pencil: centimeters or meters?
- 2.A rectangle has a length of 5 cm and a width of 3 cm. What is the area of the rectangle in square centimeters?
- 3.Find the perimeter of a square with side lengths of 4 cm.
- 4.Sarah started reading her book at 3:15 PM and finished at 3:45 PM. How many minutes did she spend reading?
- 5.A garden is 6 meters long and 4 meters wide. What is the total perimeter of the garden?
- 6.If a movie starts at 2:00 PM and lasts for 1 hour and 15 minutes, what time does the movie end?
What Your Child Will Learn
Grade 3 introduces perimeter as the total distance around a shape, calculated by adding the lengths of all sides. Students measure and construct shapes with a given perimeter and begin distinguishing between millimetres, centimetres, metres, and kilometres, learning when each unit is appropriate — a kilometre for the distance to school, a millimetre for the width of an ant.
Students also measure mass in grams and kilograms and capacity in millilitres and litres, choosing the right tool and unit for the situation. Time skills extend to reading clocks to the minute and solving elapsed-time problems that cross the hour. Comparing and converting between related units (for example, recognizing that 100 cm equals 1 m) builds number sense that supports later, more formal unit conversion.
Skills Covered
- Calculating perimeter by adding side lengths
- Choosing appropriate units: mm, cm, m, and km
- Measuring mass in grams and kilograms
- Measuring capacity in millilitres and litres
- Reading time to the minute and solving elapsed-time problems
- Relating units within the metric system (100 cm = 1 m)
Curriculum Aligned: Aligned with Strand E (Spatial Sense): measuring perimeter and selecting appropriate standard units for length, mass, capacity, and time.
Parent Tip: Have your child measure the perimeter of a room or garden bed using a tape measure, then check their addition. Real spaces make perimeter far more meaningful than shapes on a worksheet.
What your child will practice
- Measurement UnitsEstimate, measure, and record length, height, and distance using standard metric units.
- PerimeterDetermine the perimeter of polygons by adding side lengths.
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Check my workFrequently Asked Questions
What measurement skills should my child learn?
K-2: comparing lengths, telling time, counting money. Grades 3-4: standard units, perimeter, area. Grades 5-6: volume, unit conversions, and more complex measurements.
How can I practice measurement at home?
Cooking (measuring ingredients), building projects (measuring lengths), telling time, and handling money all reinforce measurement concepts naturally.
Does my child need to know both metric and imperial?
Most curricula focus on metric (meters, grams, liters) but familiarity with common imperial units (inches, pounds) is helpful for everyday life.