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Instant result
The result updates based on the values you enter.
Online Calculator
Temperature converter
Convert a temperature between Celsius, Fahrenheit and Kelvin from one tool.
Celsius
25 °C
Fahrenheit
77 °F
Kelvin
298.15 K
Information
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Local processing
The calculations are done in your browser without sending the data to a server.
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Free
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Frequently asked questions
What units do you convert?
Celsius, Fahrenheit and Kelvin.
Can I convert negative values?
Yes.
What formula do you use from Celsius to Fahrenheit?
F = C × 9/5 + 32.
What's the relationship between Celsius and Kelvin?
Kelvin = Celsius + 273.15.