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Convert lengths: customary / metric

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Free printable convert lengths between customary and metric worksheets for 5th grade. Students use approximate conversion factors — such as 1 inch ≈ 2.54 cm and 1 mile ≈ 1.6 km — to convert between the two systems of measurement. These worksheets build cross-system fluency needed for science and global contexts. Part of our measurement worksheets collection.

What You'll Learn

  • Convert between customary and metric length units
  • Use benchmark equivalents like 1 inch equals 2.54 cm
  • Solve problems requiring cross-system length conversions

FAQ

What are the key approximate conversion facts students need for customary-to-metric length?

The most commonly used facts are 1 inch ≈ 2.54 cm, 1 foot ≈ 30 cm, 1 yard ≈ 0.9 m, and 1 mile ≈ 1.6 km (or 1 km ≈ 0.6 miles).

Are customary-metric conversions exact or approximate at the 5th grade level?

At the 5th grade level, these conversions use rounded approximations; students learn that the results are not exact but are close enough for practical purposes like comparing road signs or product labels.

How does this skill appear in everyday life for students?

Speed limits in km/h on international road signs, food labels showing both ounces and grams, and sports coverage that references both meters and yards all require this cross-system literacy.

Grade
5th Grade
Ages
Ages 10-11
Subject
Math
Format
Printable PDF

Ratings & Reviews

3

David L.

2nd Grade Teacher · Verified download

May 2026

Looking forward to this! All the other ClassWeekly worksheets are excellent so I know this will be too.

Helpful · 8

Jamie T.

1st Grade Teacher · Verified download

Apr 2026

Thanks for creating this! I'll be using it the moment it's available.

Helpful · 4

Emily W.

Homeschool parent · Verified download

May 2026

Excited for this one! I've been hunting for a good printable on this topic for weeks.

Helpful · 9

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