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Converters

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin instantly. Enter a value, pick its scale, and read the result.

From scale

Enter a value and pick its scale. Results update instantly.

Converted to Fahrenheit
212°F
Kelvin373.15 K
-40°C120°C
At or above boiling
Celsius
100°C
Fahrenheit
212°F
Kelvin
373.15K
Conversions use °F = °C × 9/5 + 32 and K = °C + 273.15.

Common reference points

How to convert temperatures

The three scales measure the same physical quantity from different zero points. Celsius sets 0° at the freezing point of water and 100° at its boiling point. Fahrenheit puts those at 32° and 212°. Kelvin starts at absolute zero (−273.15 °C), so it never goes negative.

Formulas

  • Celsius → Fahrenheit: °F = (°C × 9/5) + 32
  • Fahrenheit → Celsius: °C = (°F − 32) × 5/9
  • Celsius → Kelvin: K = °C + 273.15

Frequently asked

What is 100 °C in Fahrenheit?
100 °C equals 212 °F, the boiling point of water at sea level.
What is normal body temperature?
Roughly 37 °C, which is 98.6 °F.
What is absolute zero?
0 K, equal to −273.15 °C or −459.67 °F, the lowest temperature physically possible.