Temperature Converter

Convert temperatures between degrees Celsius, kelvin and degrees Fahrenheit.

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How it converts

K = °C + 273.15
°F = °C × 9/5 + 32
°C = (°F − 32) × 5/9

Worked example

37 °C = 37 + 273.15 = 310.15 K, and 37 × 9/5 + 32 = 98.6 °F.

From the Knowledge Base

Convert 37°C to Fahrenheit and Kelvin.

°F = (37 × 9/5) + 32 = 66.6 + 32 = 98.6°F
K = 37 + 273.15 = 310.15 K

Quoted from Converting Between Celsius, Fahrenheit and Kelvin.

From the Knowledge Base

Convert 98.6°F back to Celsius, to confirm Example 1 was done correctly.

°C = (98.6 − 32) × 5/9 = 66.6 × 5/9 = 333/9 = 37.0°C

This matches the original value — a useful habit whenever you convert a temperature and want to be sure no arithmetic slip crept in.

Quoted from Converting Between Celsius, Fahrenheit and Kelvin.

Second worked example

Convert 300 K, the room temperature many gas-law questions use: 300 − 273.15 = 26.85 °C, and 26.85 × 9/5 + 32 = 80.33 °F.

Common values

Worked out with the same factors the converter uses.

Common mistakes

Learn the method

About this converter

One of the unit converters in the Chemistry Calculator Suite, alongside its chemistry, physics and maths tools. Nothing is behind a login and no value you type is sent anywhere — the conversion runs in your own browser.

The Temperature converter above is the live tool — it converts right here on the page. The link under it opens the full suite with this set already selected.

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