Temperature

Temperature cannot be below absolute zero (0 K / −273.15 °C).
Temperature cannot be below absolute zero (0 K / −273.15 °C).
Temperature cannot be below absolute zero (0 K / −273.15 °C).
Temperature cannot be below absolute zero (0 K / −273.15 °C).
Temperature cannot be below absolute zero (0 K / −273.15 °C).
Temperature cannot be below absolute zero (0 K / −273.15 °C).
Temperature cannot be below absolute zero (0 K / −273.15 °C).

Convert temperatures instantly between Celsius, Fahrenheit, Kelvin and more. Whether you are cooking, traveling abroad, or working with weather data — this tool gives you the right figure every time.

Frequently asked questions

Multiply the Celsius value by 9/5 and add 32. Example: 20 °C × 9/5 + 32 = 68 °F.

Absolute zero is 0 Kelvin, or −273.15 °C (−459.67 °F). At this point, particles have the minimum thermal energy permitted by quantum mechanics.

Pure water boils at 100 °C (212 °F or 373.15 K) at sea level. At higher altitudes, the boiling point is lower due to reduced atmospheric pressure.

A healthy body temperature is around 37 °C, which equals 98.6 °F. The CDC defines a fever as 100.4 °F (38 °C) or higher.