BrainVert
Free · no signup · fast

212°F to Celsius

100°C

212°F = 100°C = 373.15 K

Working: (212 − 32) × 5/9 = 100

212 degrees Fahrenheit converts to 100 degrees Celsius.

To convert Fahrenheit to Celsius, subtract 32 first, then multiply by 5/9. For 212°F: 212 − 32 = 180, and 180 × 5/9 = 100. The subtraction comes first because the two scales have different zero points — water freezes at 0°C but at 32°F.

A quick mental estimate is to subtract 30 and halve the result, which gives about 91°C — 9 degrees off the exact 100°C. That is close enough to judge the weather, though it drifts badly at oven temperatures.

Two hundred and twelve is the boiling point of water at sea level, and together with 32 it defines the Fahrenheit scale's span: exactly 180 degrees between freezing and boiling. Celsius uses 100 for the same interval, and that 180-to-100 ratio is where the 9/5 in the conversion formula comes from.

Nearby temperatures

FahrenheitCelsius
90°F32.2°C
98°F36.7°C
100°F37.8°C
101°F38.3°C
103°F39.4°C
105°F40.6°C
300°F148.9°C
325°F162.8°C

Try another value

From
°C
To
77°F
All scales
Celsius (°C)25 °C
Fahrenheit (°F)77 °F
Kelvin (K)298.15 K

Frequently asked questions

What is 212 degrees Fahrenheit in Celsius?

212°F is 100°C. Subtract 32 from 212 to get 180, then multiply by 5/9 to get 100.

What is the formula for Fahrenheit to Celsius?

°C = (°F − 32) × 5/9. Subtract 32 from the Fahrenheit temperature, then multiply the result by 5/9 (about 0.5556).

For any other value, use the full Temperature Converter on BrainVert.