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Temperature converter

Convert between °C, °F, K and more. Free temperature converter, instant and accurate.

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This temperature converter switches instantly between Celsius (°C), Fahrenheit (°F) and Kelvin (K). Type a value, pick the units, and get the exact result — plus the value in every other scale. Free and precise, right in your browser.

How to use it

  1. Enter the temperature value.
  2. Pick the unit to convert from and to.
  3. Read the converted value instantly.

Frequently asked questions

How do I convert Celsius to Fahrenheit?

Multiply the Celsius value by 9/5 and add 32: °F = °C × 9/5 + 32. For example, 20°C = 68°F.

How do I convert Fahrenheit to Celsius?

Subtract 32 and multiply by 5/9: °C = (°F − 32) × 5/9. For example, 98.6°F = 37°C.

What is 0°C in Fahrenheit?

0°C equals 32°F — the freezing point of water. 100°C (boiling point) equals 212°F.

What is Kelvin and how does it relate to Celsius?

Kelvin is the SI unit of temperature, starting at absolute zero. K = °C + 273.15. So 0°C = 273.15 K and 25°C = 298.15 K.

What is normal body temperature in Fahrenheit?

Around 37°C, which is 98.6°F. A fever generally starts above 38°C (100.4°F).

Which countries use Fahrenheit vs Celsius?

Most of the world uses Celsius. Fahrenheit is mainly used in the United States and a few territories, so this converter is handy for recipes, travel and weather.

How do I convert °C to °F?

For example, 1 °C equals 33.8 °F. Enter any value above to convert instantly.

How do I convert °F to °C?

For example, 1 °F equals -17.2222 °C. Enter any value above to convert instantly.

How do I convert °C to K?

For example, 1 °C equals 274.15 K. Enter any value above to convert instantly.

Which units does this converter support?

It converts between °C, °F, K.

Further reading

All guides →
ExplainerCelsius to Fahrenheit: The FormulaMultiply by 9/5 and add 32. Here's the formula, the reverse, a quick mental shortcut, and the reference points worth committing to memory.Explainerkg to lbs: Formula and Quick TableMultiply kilograms by 2.2046 for pounds. Here's the exact factor, how to go back, a quick mental estimate, and a reference table.How-toCooking Measurement ConversionsA few anchors — cups, tablespoons, grams — cover most recipes. Here's the handful worth memorising, why weight beats volume, and when to reach for a scale.Explainercm to Inches and FeetDivide centimetres by 2.54 for inches, or 30.48 for feet. Here's the formula, how to write a height in feet and inches, and a reference table.How-toHow to Scale a Recipe Up or DownMultiply every ingredient by the same factor. Here's how to find it, why the ratios must stay fixed, what doesn't scale linearly, and how to round sensibly.ExplainerDew Point: What It Is, and How the Calculator Gets ItMagnus–Tetens with the Alduchov–Eskridge coefficients, 17.625 and 243.04. Why an absolute number beats relative humidity for judging comfort, what temperature a window has to reach before it runs, and the one input the calculator does not check.