What is the formula for Celsius to Fahrenheit?

°F = (°C × 9/5) + 32. The reverse is °C = (°F − 32) × 5/9. The only temperature where both scales agree is −40°.

What is absolute zero?

The theoretical lowest possible temperature: 0 Kelvin = −273.15°C = −459.67°F. Nothing can be colder.

Temperature Converter

Enter a temperature in °C, °F, or K to instantly see all three equivalents.

Enter any temperature in Celsius, Fahrenheit, or Kelvin to instantly see the equivalent in all three scales. This calculator uses exact conversion formulas — not rounding approximations.

Last reviewed: April 2026Report an error

Temperature

From

°Celsius → °Fahrenheit

212.00°Fahrenheit

100°Celsius = 212°Fahrenheit.

°Celsius

100.00°Celsius

°Fahrenheit

212.00°Fahrenheit

Kelvin

373.15Kelvin

How to Use This Temperature Calculator

Select the temperature scale you are starting from.
Enter the temperature value.
Read the equivalents in the other two scales.

Frequently Asked Questions

: °F = (°C × 9/5) + 32. The reverse is °C = (°F − 32) × 5/9. The only temperature where both scales agree is −40°.
: The theoretical lowest possible temperature: 0 Kelvin = −273.15°C = −459.67°F. Nothing can be colder.

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Temperature Converter

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