Temperature tools
Convert between Celsius, Fahrenheit, Kelvin and Rankine. Unlike every other category on this site, temperature conversions require an offset as well as a scale factor, because the scales disagree about where zero sits.
About temperature conversion
Temperature is the one quantity here where conversion is not simple multiplication: the scales have different zero points as well as different degree sizes, so each conversion needs both an offset and a ratio.
All 12 temperature tools
Celsius to FahrenheitConvert Celsius to Fahrenheit: °F = °C × 9/5 + 32. Free instant temperature converter with the f…Open →Celsius to KelvinConvert Celsius to kelvin: K = °C + 273.15. Free instant temperature converter with the formula …Open →Celsius to RankineConvert Celsius to Rankine: °R = (°C + 273.15) × 9/5. Free instant temperature converter with th…Open →Fahrenheit to CelsiusConvert Fahrenheit to Celsius: °C = (°F − 32) × 5/9. Free instant temperature converter with the…Open →Fahrenheit to KelvinConvert Fahrenheit to kelvin: K = (°F − 32) × 5/9 + 273.15. Free instant temperature converter w…Open →Fahrenheit to RankineConvert Fahrenheit to Rankine: °R = °F + 459.67. Free instant temperature converter with the for…Open →Kelvin to CelsiusConvert kelvin to Celsius: °C = K − 273.15. Free instant temperature converter with the formula …Open →Kelvin to FahrenheitConvert kelvin to Fahrenheit: °F = (K − 273.15) × 9/5 + 32. Free instant temperature converter w…Open →Kelvin to RankineConvert kelvin to Rankine: °R = K × 9/5. Free instant temperature converter with the formula and…Open →Rankine to CelsiusConvert Rankine to Celsius: °C = (°R − 491.67) × 5/9. Free instant temperature converter with th…Open →Rankine to FahrenheitConvert Rankine to Fahrenheit: °F = °R − 459.67. Free instant temperature converter with the for…Open →Rankine to KelvinConvert Rankine to kelvin: K = °R × 5/9. Free instant temperature converter with the formula and…Open →