How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32. For example, 100°C = (100 × 9/5) + 32 = 212°F. Our tool handles this calculation automatically.

What is absolute zero?

Absolute zero is 0 Kelvin, -273.15°C, or -459.67°F. It's the lowest possible temperature where all molecular motion stops.

Kelvin is used in scientific contexts. It starts at absolute zero and uses the same scale as Celsius (1K difference = 1°C difference).

°C = (°F - 32) × 5/9. For example, 72°F = (72 - 32) × 5/9 = 22.22°C.

Yes! We use the exact mathematical formulas for temperature conversion with high precision.

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Convert between Celsius, Fahrenheit, and Kelvin

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Celsius (°C)

Fahrenheit (°F)

Kelvin (K)

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Quick Reference

Water Freezing

0°C = 32°F = 273.15K

Room Temperature

20°C = 68°F = 293.15K

Body Temperature

37°C = 98.6°F = 310.15K

Water Boiling

100°C = 212°F = 373.15K

Absolute Zero

-273.15°C = -459.67°F = 0K

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Last updated: Feb 27, 2026