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Units of measurement: exact conversions

Exact customary and metric unit conversions for length, mass, capacity, time and area, each checked in two independent unit-definition sets.

Grades 2–12Math31 verified0 sourced

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Units of measurement and conversions
UnitMeasuresEquals
1 acreArea
43,560 square feet VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 centimeterLength
10 millimeters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 cup (US)Capacity
8 fluid ounces VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 dayTime
24 hours VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 footLength
12 inches VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 footLength
0.3048 meters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 gallon (US)Capacity
4 quarts VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 gallon (US)Capacity
3.785411784 liters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 hectareArea
10,000 square meters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 hourTime
60 minutes VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 inchLength
2.54 centimeters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 kilogramMass and weight
1,000 grams VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 kilometerLength
1,000 meters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 literCapacity
1,000 milliliters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 meterLength
100 centimeters VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 metric tonMass and weight
1,000 kilograms VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 mileLength
5,280 feet VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 mileLength
1,760 yards VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 mileLength
1.609344 kilometers VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 minuteTime
60 seconds VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 ounceMass and weight
28.349523125 grams VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 pint (US)Capacity
2 cups VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 poundMass and weight
16 ounces VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 poundMass and weight
0.45359237 kilograms VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 quart (US)Capacity
2 pints VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 short tonMass and weight
2,000 pounds VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 square footArea
144 square inches VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 tablespoon (US)Capacity
3 teaspoons VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 weekTime
7 days VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 yardLength
3 feet VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).
1 yardLength
36 inches VerifiedSource: Pint unit definitions, retrieved 2026-10-26 · UnitsNet unit definitions, retrieved 2026-10-26 record 1record 2Verified: Two independent sources agree (or the defining body published it and we read it directly).

Select a value to see its source and retrieval date. A dash means we found no reliable value, or the sources disagreed.

Sources and licences

Data compiled 2026-10-26.