Use this temperature converter to switch instantly between Celsius, Fahrenheit and Kelvin. Enter a value in one scale and see the equivalent in the other two right away. It is useful for weather forecasts, recipes, laboratory work, school exercises and any situation where temperatures are shared across countries or scientific systems.
Absolute zero is 0 K = −273.15°C = −459.67°F. It's the lowest possible temperature, at which all molecular motion theoretically stops.
Celsius and Fahrenheit are equal at −40°: −40°C = −40°F. This is the crossover point of the two scales.
Kelvin is an absolute temperature scale that starts at absolute zero, which makes it especially useful in physics and scientific formulas. Unlike Celsius and Fahrenheit, it does not use the degree symbol.
Formulas: °F = °C × 9/5 + 32 | °C = (°F − 32) × 5/9 | K = °C + 273.15 | °C = K − 273.15
Example: 100°C = 212°F = 373.15 K. Water boiling point at sea level.
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