Converters

Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur. Type in any field — others update instantly.

°C
°F
K
°R
°Ré

Reference temperatures

  • Absolute zero: 0 K / −273.15°C / −459.67°F
  • Water freezes: 273.15 K / 0°C / 32°F
  • Body temperature: 310.15 K / 37°C / 98.6°F
  • Water boils: 373.15 K / 100°C / 212°F
  • Surface of the sun: 5,778 K / 5,505°C / 9,941°F

Frequently asked questions

What is absolute zero?

0 K = -273.15°C = -459.67°F. Lowest possible thermodynamic temperature.

Quick C to F?

F = C × 9/5 + 32. 37°C = 98.6°F (body temp).