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Convert between units of length, weight, temperature, data, and time with exact conversion factors and instant results.
Everything runs locally in your browser — nothing is sent to a server.
Conversions use exact defined factors where they exist — for example, 1 inch is exactly 2.54 centimeters and 1 pound is exactly 0.453592 kilograms. Results are displayed with up to 12 significant digits.
Computers address memory in powers of two, so data sizes traditionally use binary prefixes: 1 KB = 1024 bytes, 1 MB = 1024 KB. Disk manufacturers often advertise using decimal units (1 kB = 1000 bytes), which is why a "1 TB" drive shows up as about 931 GB.
Multiply the Celsius value by 9, divide by 5, then add 32. For example, 100°C becomes 212°F. To go the other way, subtract 32, multiply by 5, then divide by 9.