Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin.

1 Kelvin is

Celsius (°C)-272.15
Fahrenheit (°F)-457.87
Kelvin (K)1
Calculated in your browser.
Guide

How to use the temperature converter

1

Enter a number

Type the value you want to convert.

2

Choose the units

Pick the unit you have and the unit you want. Celsius, Fahrenheit and Kelvin are included.

3

Read the result

The converted value appears at once, with the same number in every other unit.

Frequently asked questions

What is the formula for Celsius to Fahrenheit?

°F = °C × 1.8 + 32.

What is the formula for Fahrenheit to Celsius?

°C = (°F − 32) × 5/9.

What is absolute zero?

0 K, which is −273.15 °C or −459.67 °F.

At what temperature are Celsius and Fahrenheit equal?

At −40.

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