Temperature Converter

• Celsius to Fahrenheit°C to °F
• Celsius to Kelvin°C to K
• Fahrenheit to Celsius°F to °C
• Fahrenheit to Kelvin°F to K
• Kelvin to CelsiusK to °C
• Kelvin to FahrenheitK to °F

Temperature scales have different zero points, so they are converted with formulas rather than a single multiplier:

• 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 Kelvin: K = (°F − 32) × 5⁄9 + 273.15
• Kelvin to Fahrenheit: °F = (K − 273.15) × 9⁄5 + 32

Celsius (°C)

The Celsius scale sets 0 °C at the freezing point of water and 100 °C at its boiling point at standard pressure. It is the everyday temperature scale almost everywhere outside the United States.

Fahrenheit (°F)

On the Fahrenheit scale water freezes at 32 °F and boils at 212 °F, so one Fahrenheit degree is 5/9 of a Celsius degree. It is the everyday scale in the United States.

Kelvin (K)

The kelvin is the SI unit of temperature, starting at absolute zero (0 K = −273.15 °C). Kelvin steps are the same size as Celsius degrees, and no degree sign is used.

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