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Convert Celsius to Fahrenheit

Convert Celsius to Fahrenheit using °F = (°C × 9/5) + 32. Enter a temperature to see the result instantly.

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Convert Celsius to Fahrenheit

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Formula

How to convert Celsius to Fahrenheit

Use the formula °F = (°C × 9/5) + 32. For example, 100°C = 212°F.

Quick mental estimate: double it and add 30 (20 °C → 70 °F, real answer 68 °F).

Celsius to Fahrenheit conversion table

CelsiusFahrenheit
-40 °C-40 °F
0 °C32 °F
10 °C50 °F
20 °C68 °F
25 °C77 °F
30 °C86 °F
37 °C98.6 °F
100 °C212 °F
FahrenheitCelsius
0 °F-17.78 °C
32 °F0 °C
50 °F10 °C
68 °F20 °C
72 °F22.22 °C
98.6 °F37 °C
100 °F37.78 °C
212 °F100 °C

About converting Celsius to Fahrenheit

Celsius (°C) and Fahrenheit (°F) are temperature scales with different zero points, so they convert with a formula rather than a single multiplier: °F = (°C × 9/5) + 32.

Type any temperature above to convert it instantly. For the opposite direction, use the Fahrenheit to Celsius converter, or the full unit converter.

Reference temperatures

Reference pointCelsiusFahrenheitKelvin
Absolute zero-273.15 °C-459.67 °F0 K
Coldest air temperature recorded (Vostok, 1983)-89.2 °C-128.56 °F183.95 K
Water freezes0 °C32 °F273.15 K
Comfortable room≈ 20 °C≈ 68 °F≈ 293.15 K
Normal body temperature≈ 37 °C≈ 98.6 °F≈ 310.15 K
Hottest air temperature recorded (Death Valley, 1913)56.7 °C134.06 °F329.85 K
Water boils at sea level100 °C212 °F373.15 K
Moderate oven (gas mark 4)180 °C356 °F453.15 K

The scales

Celsius (°C)

The scale used by most of the world: water freezes at 0 °C and boils at 100 °C at sea level; 0 °C = 273.15 K.

Used for: Weather, cooking and medicine worldwide.

Fahrenheit (°F)

Water freezes at 32 °F and boils at 212 °F at sea level, so a 1 °F step is 5/9 of a 1 °C step.

Used for: Weather and cooking in the US.

−40 is the one temperature that reads the same in Celsius and Fahrenheit.

Frequently asked questions

5 answers
What is the formula to convert Celsius to Fahrenheit?
°F = (°C × 9/5) + 32.
What is 100°C in Fahrenheit?
100°C equals 212°F.
Is this Celsius to Fahrenheit converter accurate?
Yes — it applies the standard temperature formula and computes in your browser.
At what temperature are Celsius and Fahrenheit equal?
At −40: −40 °C is exactly −40 °F.
What is normal body temperature in Fahrenheit?
About 98.6 °F (37 °C). Modern studies put the average adult closer to 36.6 °C, and it varies through the day.