How do I convert Celsius to Fahrenheit?

Multiply by 9/5 then add 32. So 20°C = (20 × 9/5) + 32 = 68°F.

What is absolute zero?

Absolute zero is −273.15°C (0 K), the theoretical minimum temperature where molecular motion stops.

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Temperature Converter

Convert temperatures between Celsius, Fahrenheit, Kelvin & Rankine.

From

100 °C

212

°F

Celsius (°C)

100

Fahrenheit (°F)

212

Kelvin (K)

373.15

Rankine (°R)

671.67

Reference points

Temperature Scales Explained

Celsius (°C) is used in most countries for everyday temperature. Fahrenheit (°F) is used in the United States. Kelvin (K) is the SI base unit used in science — it starts at absolute zero.

Frequently Asked Questions

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