Temperature Converter

When the recipe says 180 degrees, it means Celsius

A British baking blog says "bake at 180 degrees", a weather report from Madrid forecasts 25 degrees, a medical leaflet from abroad lists a fever threshold of 38. Read as Fahrenheit, those numbers make no sense. Jood's temperature converter switches between Celsius, Fahrenheit and Kelvin in a second.

How to use it

1. Enter the temperature, negative or with decimals if needed, like -5 or 36.6.
2. Choose the unit you are converting from and the one you want.
3. Click "Start Now".

If you enter something colder than absolute zero (-273.15 °C), the tool tells you it is physically impossible instead of printing a meaningless number.

Examples worked out with the tool

• An oven at 180 °C is 356 °F, and the familiar 350 °F is 176.6667 °C.
• Body temperature of 37 °C is 98.6 °F, and a fever starts around 38 °C, or 100.4 °F.
• A forecast of 25 °C is 77 °F, and 20 °C is 68 °F. So "20 degrees" is a mild spring day in Europe but a freezing one in the US.
• At -40 the two scales meet: -40 °C is exactly -40 °F.

The formulas behind it

• Celsius to Fahrenheit: multiply by 9, divide by 5, then add 32.
• Fahrenheit to Celsius: subtract 32, multiply by 5, then divide by 9.
• Celsius to Kelvin: add 273.15. Kelvin takes no degree sign, so it is 300 K, not 300 °K.

A quick mental shortcut: double the Celsius figure and add 30. For 10 °C you get 50 °F, which happens to be exact. The error grows as it gets hotter, but for the weather it is a decent estimate.

Related tools

For the weights in a recipe, use the weight converter, and for liquids the volume converter. The calculation runs on Jood's server in an instant and nothing is stored.