Example 1
- Direction: Fahrenheit to Celsius
- 32 °F
0 °C
How many °C is 32 °F? 0 °C, the freezing point of water.
Fahrenheit to Celsius
The calculator converts Fahrenheit to Celsius. 32 °F is 0 °C. 98.6 °F is 37 °C. 212 °F is 100 °C. The formula is linear: subtract 32 and multiply by 5/9.
The other page, Celsius to Fahrenheit, is on Celsius to Fahrenheit. Kelvin: Kelvin and Celsius.
Result
Enter a temperature in °F or in °C. The result will appear here.
How it works
The calculator subtracts 32 from Fahrenheit and multiplies by 5/9. 32 °F is 0 °C. 98.6 °F is 37 °C. 212 °F is 100 °C.
The other way, you multiply Celsius by 9/5 and add 32. 0 °C is 32 °F. 100 °C is 212 °F. −40 is the same point on both scales.
The “double and subtract 30” shortcut is close at room temperature and wrong in an oven.
Frost below 32 °F gives a negative Celsius result. That is a valid result. Below −273.15 °C the calculator does not accept the value.
Kelvin belongs on a separate page. This page is for Fahrenheit and Celsius — weather and an oven.
A comma and a period give the same fraction. 98,6 and 98.6 are the same temperature.
Formula
°C = (°F − 32) × 5/9; °F = °C × 9/5 + 32
32 °F is 0 °C. 212 °F is 100 °C. −40 is shared.
How to use
- Choose Fahrenheit to Celsius.
- Enter 32. The result is 0 °C.
- Enter 98.6. The result is 37 °C.
- The other way, enter 100. The result is 212 °F.
32 °F is 0 °C
°C = (°F − 32) × 5/9. 98.6 °F is 37 °C. 212 °F is 100 °C.
- °F
- Fahrenheit. 32 °F is ice, 98.6 °F is 37 °C, 212 °F is boiling.
- °C
- Celsius. 0 °C is ice, 37 °C is body temperature, 100 °C is boiling.
- −40
- The only point where both scales show the same number.
Examples
Example 2
- Direction: Fahrenheit to Celsius
- 98.6 °F
37 °C
How many °C is 98.6 °F? 37 °C, the classic body temperature.
Example 3
- Direction: Fahrenheit to Celsius
- 212 °F
100 °C
How many °C is 212 °F? 100 °C, the boiling point of water.
Related calculators
Frequently asked questions
How many °C is 32 °F?
0 °C. That is the freezing point of water, not zero Fahrenheit.
How many °C is 98.6 °F?
37 °C. That is the classic body temperature on a US thermometer.
How many °C is 212 °F?
100 °C. That is the boiling point of water at standard pressure.
What is the formula?
°C = (°F − 32) × 5/9. The other way, °F = °C × 9/5 + 32.
Is −40 valid?
Yes. −40 °F and −40 °C are the same point.
Is “double and subtract 30” enough?
It is close at room temperature. At 212 °F it is wrong.
Where is kelvin?
On the kelvin and Celsius page. This page uses Fahrenheit.
Is 180 °F a bread temperature?
180 °F is 82.22 °C, too low for bread. 180 °C is 356 °F.
Does a comma work?
Yes. 98,6 and 98.6 give the same fraction.
Where do I convert Celsius to Fahrenheit?
On the Celsius to Fahrenheit page. That page starts from Celsius.
Sources
°C = (°F − 32) × 5/9.
Page updated in 2026.