100 Celsius to Fahrenheit
100°C = 212°F
100 degrees Celsius is equal to 212 degrees Fahrenheit.
Convert 100 Celsius to Fahrenheit using our free temperature converter.
How to convert 100 °C to °F
Use the formula °F = (°C × 9/5) + 32 and substitute 100 for °C:
°F = (100 × 9/5) + 32°F = 180 + 32°F = 212
So 100 °C = 212 °F.
What does 100 °C mean?
This is the boiling point of water at sea level (standard atmospheric pressure), defined as 212 °F. At higher altitudes water boils at a lower temperature.
100 °C is around the boiling point of water (100 °C / 212 °F at sea level), relevant for boiling, steaming and pressure cooking.
- Fahrenheit
- 212 °F
- Kelvin
- 373.15 K
- Quick estimate (double + 30)
- 230 °F
For 100 °C the quick “double it and add 30” estimate gives 230 °F — 18 °F too high. The shortcut works best between about 0 °C and 20 °C; use the exact formula for anything that matters.
More in this range: Boiling point & oven temperatures (100–499 °C).
100 °C and nearby values
Related conversions
The Celsius to Fahrenheit formula
°F = (°C × 9/5) + 32
Multiply the Celsius temperature by 9/5 (1.8) because a Celsius degree is 1.8 times larger than a Fahrenheit degree, then add 32 because water freezes at 32 °F rather than 0 °F. To go the other way, use °C = (°F − 32) × 5/9 — for example, 212 °F back to Celsius gives 100 °C.
See the formula explained in detail or the step-by-step conversion guide.
Frequently asked questions
What is 100 Celsius in Fahrenheit?
100 degrees Celsius is equal to 212 degrees Fahrenheit (100 °C = 212 °F).
How do you convert 100 °C to °F?
Multiply 100 by 9/5 (or 1.8) and add 32: (100 × 1.8) + 32 = 212 °F.
Is 100 °C hot or cold?
It is extremely hot — around the boiling point of water. 100 °C is 212 °F.
What is 100 °C in Kelvin?
Add 273.15 to the Celsius value: 100 °C = 373.15 K.