Units & converters

Temperature converter

Convert absolute temperatures between Celsius, Fahrenheit and kelvin. The limits of each scale are checked.

Free & no registration Calculated in your browser

Your inputs

The starting values are an example.

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

T(K) = t(°C) + 273.15; t(°F) = 1.8 × t(°C) + 32

0 Degree Celsius (°C) = 32 Degree Fahrenheit (°F).

Absolute zero is 0 K, −273.15 °C or −459.67 °F. Lower inputs are rejected. Temperature differences have a separate converter.
Rounding is applied only to displayed results. Very small or very large values may appear in scientific notation.