Tool

Celsius to Fahrenheit Calculator

How to use the Celsius to Fahrenheit Calculator

Convert temperatures from degrees Celsius to degrees Fahrenheit with an affine temperature formula. Enter the requested values, review their units, and select Calculate. The result panel shows both the answer and the substituted steps.

The formula

°F = (°C × 9/5) + 32

Frequently asked questions

When are Celsius and Fahrenheit equal?

Both scales read −40 at the same temperature.

Why is 32 added?

The Fahrenheit zero point is offset from Celsius, so the conversion needs both scaling and an offset.

Important notes

Results are estimates based on the values supplied and the formula shown. Round only at the end of a calculation, and verify safety-critical, medical, financial, or construction decisions with an appropriate professional.