100 °C to °F
100 °C equals 212 °F.
How to convert 100 °C to °F
The formula
Multiply the Celsius value by 1.8 (or 9/5), then add 32.
°F = °C × 9/5 + 32
Apply it to 100 °C
100 × 9/5 + 32 = 180 + 32 = 212
Rounded for everyday use: 212 °F.
A quick mental estimate
For everyday weather temperatures you can double the Celsius figure and add 30: 100°C → about 230°F. The exact answer is 212°F, so the shortcut is off by 18°F here — it works best between about −10°C and 30°C and drifts at oven temperatures.
About 100 °C
100°C is the boiling point of water at sea level, so 212°F is the temperature a rolling boil reaches in a kettle or pan at standard pressure.
Nearby values
Convert any other value
Need a different number? Use the main Celsius to Fahrenheit converter to convert any value instantly, in either direction.
Going the other way, 212 °F converts back to 100 °C. Use the Fahrenheit to Celsius converter for any value.
Frequently asked questions
What is 100 °C in °F?
100 °C is 212 °F.
How do you convert Celsius to Fahrenheit?
Multiply the Celsius value by 1.8 (or 9/5), then add 32. For example, 100 × 9/5 + 32 = 180 + 32 = 212.
Is 100 °C exactly 212 °F?
Yes — with the formula used on this page the result is exact.
How many °C is 212 °F?
212 °F is 100 °C.
Why does 100 °C come up so often?
100°C is the boiling point of water at sea level, so 212°F is the temperature a rolling boil reaches in a kettle or pan at standard pressure.