Free online tool

Temperature Converter

Convert Celsius, Fahrenheit and Kelvin with absolute-zero validation.

Enter your values

Result

Enter the values and choose Calculate.

How to use this tool

Convert temperatures accurately between the three most widely used scales.

  1. Enter your values
  2. Calculate
  3. Copy · Share

Formula and method

°F = °C × 9 ÷ 5 + 32 · K = °C + 273.15

Worked example

0°C equals 32°F and 273.15 K.

Frequently asked questions

Is this tool free and private?

Yes. It is free to use without an account, and the calculation runs in your browser.

Temperature Converter

Convert Celsius, Fahrenheit and Kelvin with absolute-zero validation.

Content basis and verification

· Calculations run in your browser. Check the formula and assumptions on this page, and confirm important financial, tax, medical or legal decisions against current official guidance.