Unit converter

Ready

Convert length, area, weight, volume, temperature, speed and data units, and see the value in every unit of the same kind in one table.

How to use

Choose the kind of unit: length, area, weight, volume, temperature, speed or data.
Enter a value and pick the units to convert from and to. A table shows the same value in every unit of that kind.

Formula

Result = value × (size of the source unit ÷ size of the target unit)
°F = °C × 9/5 + 32, K = °C + 273.15
1 in = 2.54 cm, 1 lb = 0.45359237 kg, 1 US gal = 3.785411784 L
1 KB = 1,000 B, 1 KiB = 1,024 B

Worked example

1 m ≈ 3.28084 ft 100 °F ≈ 37.7778 °C 1 lb ≈ 0.453592 kg 1 GB ≈ 0.931323 GiB

FAQ

Why does a 500 GB drive show up as 465 GB?

Drive makers use 1 GB = 1,000,000,000 bytes, while many operating systems count in 1,024³ bytes (GiB) but still label them GB. 500 GB ≈ 465.66 GiB.

US or UK gallons?

Both are listed: 1 US gallon = 3.785 L and 1 imperial (UK) gallon = 4.546 L. Cups and fluid ounces here are US measures.

Why can’t I convert a negative weight?

Length, area, weight, volume and data can’t be negative. Temperatures can, down to absolute zero (−273.15 °C).

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