Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly.
💡 Tip: You can type in either field — the converter works both ways! Use the swap button or type directly in the "To" field to reverse the conversion.
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Everything you need to know
°C, °F, K — Pick Your Scale
Is 72°F warm or cold? What's 37°C in Fahrenheit? And what even is Kelvin? If you've ever stared at a temperature reading from another country and had zero idea what it means — this converter is for you.
The Quick Cheat Sheet
- 0°C = 32°F — water freezes
- 20°C = 68°F — comfortable room temperature
- 37°C = 98.6°F — normal body temperature
- 100°C = 212°F — water boils
- -40° — the one temperature where Celsius and Fahrenheit are the same
Mental Math Trick
Don't have a calculator handy? For a rough C→F conversion: double the Celsius value and add 30. So 25°C → 50 + 30 = 80°F (actual: 77°F). Good enough to decide if you need a jacket.
Who Uses What?
Celsius — used by most of the world. Fahrenheit — used in some regions. Kelvin — scientists and engineers. Kelvin is basically Celsius but starting from absolute zero instead of the freezing point of water, so 0 K = -273.15°C.
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Need weight conversions too? Use the Weight Converter. Converting distances? Try the Length Converter. Or see all unit types in the Unit Converter.