Math Worksheet · Grades 3–5
Customary Units of Measurement Worksheet
A 3-page member worksheet for grades 3–5 covering customary units of length, weight, and capacity. Students complete 12 unit conversions, identify the best unit for 10 real-world items, and solve 3 word problems. Includes a complete answer key.
Subject
Math
Grades
Grades 3–5
Skill Focus
Customary Units of Measurement, measurement
Lesson Length
20 minutes
Lesson Overview
About this worksheet
Understanding customary measurement units is a core standard in grades 3 through 5, and the ability to convert fluently between them is tested on state assessments across the country. This worksheet covers all three customary measurement domains — length (inches, feet, yards), weight (ounces, pounds, tons), and capacity (cups, pints, quarts, gallons) — in a single, compact resource. A reference box on page 1 lists all key conversion facts so students can focus on applying the relationships rather than memorizing them during the exercise.
Section A builds conversion fluency with 12 fill-in problems arranged in a three-column grid, moving from simple two-step relationships (feet to inches, yards to feet) to slightly more complex ones (ounces to pounds, quarts to pints). Section B sharpens measurement judgment with 10 best-unit items: for each real-world object or scenario, students choose the most sensible unit from two options. This section reinforces the conceptual understanding that different units exist because different scales require different tools.
Section C wraps up with three applied word problems that require students to perform a conversion and communicate the result with a label. The answer key on page 3 provides the full equation and unit label for each Section C answer, making it straightforward to check student work or discuss solutions as a class.
How to Use This Lesson
Read the reference box together and pause at the capacity column — students often confuse the cup-pint-quart-gallon sequence; a quick visual (nesting diagram) helps.
Complete Section A in pairs; encourage students to show the multiplication or division step before writing the answer.
Work through Section B as a class discussion first; ask students to justify their unit choice before committing an answer.
Have students attempt Section C independently; remind them to label every answer with the correct unit.
Use the answer key on page 3 for spot-check or self-check; follow up with Metric Units of Measurement Worksheet to compare the two systems.
Printable Resource
A classroom-ready PDF with everything in one printable resource.
Full Member Resource · Printable PDF · 3 pages · Answer Key
Customary Units of Measurement Worksheet
A 3-page member worksheet for grades 3–5 covering customary units of length, weight, and capacity. Students complete 12 unit conversions, identify the best unit for 10 real-world items, and solve 3 word problems. Includes a complete answer key.
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