EVERYDAY MATH • FREE CALCULATOR

Temperature Converter

Convert Celsius and Fahrenheit and see the formula behind each temperature result.

Converted temperature
71.6 °F

How it works

Fahrenheit = Celsius × 9/5 + 32, Kelvin = Celsius + 273.15.

Worked calculation

22°C equals 71.6°F. For the sample inputs, the calculator displays these results:

Converted temperature71.6 °F

Assumptions and limitations

Kelvin must be nonnegative.

Results update as you change inputs. The values are calculated from the displayed inputs and assumptions, not obtained from an external measurement. Check units, rounding, and any special rules that apply to your situation.

Temperature needs an offset

Converting Celsius and Fahrenheit includes an offset as well as a scale factor. Kelvin starts at absolute zero and uses the same degree size as Celsius.

Avoid confusing temperature and difference

A change of 1°C equals a change of 1.8°F, but an absolute value of 1°C does not equal 1.8°F.

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Frequently asked questions

How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32.

What is absolute zero?

0 K, or −273.15 °C. Colder values are not physically possible.

How do I convert to Kelvin?

Add 273.15 to degrees Celsius.

Sources and further reading

Last updated: . Results are estimates for information only and are not financial, medical or professional advice.