⇄Conversion calculator

Temperature Converter

Celsius, Fahrenheit, and Kelvin at once.

Enter value and from and get celsius (°c) and fahrenheit (°f) instantly.

InValueInFromOutCelsius (°C)OutFahrenheit (°F)OutKelvin (K)
2 inputs3 resultsFree no signupPrivate in your browser

Temperature Converter

Fill in the values and the answer updates as you type.

Live
1 Your numbers
2 Your result

How the Temperature Converter works

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

Inputs and results

The Temperature Converter takes 2 inputs and gives 3 results.

What you enter

  • Value — starts at 25.
  • From — starts at C. Choose from: C, F and K.

What you get

  • Celsius (°C)
  • Fahrenheit (°F)
  • Kelvin (K)

Example: Temperature Converter with the starting values

With value 25 and from C, the calculator returns:

Example results
Celsius (°C)25
Fahrenheit (°F)77
Kelvin (K)298.15

Change any value above and the results update straight away.

Temperature Converter FAQ

How do I use the Temperature Converter?

Enter value and from in the fields, then read celsius (°c), fahrenheit (°f) and kelvin (k) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.

What does the Temperature Converter calculate?

Celsius, Fahrenheit, and Kelvin at once. It returns celsius (°c), fahrenheit (°f) and kelvin (k) from the 2 values you provide.

What values does the Temperature Converter start with?

It opens with value 25 and from C so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.

Is the Temperature Converter free and private?

Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.

Can I rely on the Temperature Converter for important decisions?

Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.