4th grade metric conversion worksheets

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Fourth grade metric conversion worksheets stay in one direction: larger unit to smaller, whole numbers. Prompts like 4 km = ___ m draw from five unit families, and every conversion is a multiplication by 10, 100, or 1000.

Free printable PDF worksheet, aligned to Common Core 4.MD.A.1.

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The kind of problems you'll get

Convert each measurement.

  1. 5 km = m

    Answer: 5000 m

  2. 11 m = cm

    Answer: 1100 cm

  3. 788 cm = mm

    Answer: 7880 mm

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on a 4th grade sheet

Every version prints on US Letter or A4, with its answer key after the problems.

How to teach this

Anchor the prefixes before the arithmetic: kilo means a thousand, centi a hundredth, milli a thousandth. Then every item is the same move: name the factor, multiply. If your child writes 400 for 4 km, count the zeros in 1000 together; the factor has three, so the answer needs all three. Money helps too: dollars to cents is the same times-100 trade.

Watch for: Kids tack zeros onto a number that already has a decimal point, turning 2.5 m into 2500 cm. Shift the point two places instead: 2.5 m is 250 cm. Kids divide when converting to the smaller unit, so 4 km becomes 0.004 m. Smaller units mean more of them, and 4 km is 4000 m.

Common questions about 4th grade metric conversion

Which metric units are on the sheet?
Five families: kilometers and meters, meters and centimeters, centimeters and millimeters, kilograms and grams, liters and milliliters. Fourth grade items go from the larger unit to the smaller one, with whole-number answers.
Why are metric and customary conversions separate sheets?
The thinking is different. Metric conversions are all powers of ten, so the skill is place value; customary factors like 12 and 16 lean on memorized facts. One skill per worksheet keeps the practice clean.

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Aligned to Common Core 4.MD.A.1. Reviewed by the One more sheet team. Content version 240, updated September 2026.

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