Temperature Converter
Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine instantly. Customize precision and view your conversion history.
Temperature Conversion
Quick Conversions
Conversion History
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Temperature Scale Information
Celsius (°C)
Based on water's freezing point (0°C) and boiling point (100°C) at standard pressure.
Fahrenheit (°F)
Used in the US. Water freezes at 32°F and boils at 212°F.
Kelvin (K)
Absolute scale for science. 0 K is absolute zero.
Rankine (°R)
Absolute scale based on Fahrenheit, used in engineering.
Conversion Formulas
Celsius to Fahrenheit
°F = (°C × 9/5) + 32
Fahrenheit to Celsius
°C = (°F - 32) × 5/9
Celsius to Kelvin
K = °C + 273.15
Kelvin to Celsius
°C = K - 273.15
Fahrenheit to Rankine
°R = °F + 459.67
Rankine to Fahrenheit
°F = °R - 459.67