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100 °F to °C
100 °F = 37.778 °C
100 degrees Fahrenheit is 37.778 degrees Celsius.
How to work it out
(100 − 32) × 5/9 = 37.778
Formula: °C = (°F − 32) × 5/9
Other ways to write it
- Rounded
- 37.8 °C
- In kelvin
- 310.93 K
Normal body temperature is around 98.6 °F (37 °C), and the CDC counts 100.4 °F (38 °C) or higher as a fever.
Fahrenheit to Celsius (°F to °C) near 100
Full Fahrenheit to Celsius (°F to °C) chart → Celsius to Fahrenheit (°C to °F) →
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About the Unit Converter
The unit converter changes values between metric and imperial units for length, weight, temperature, digital data, area, and volume.
How to use it
- 1 Choose a category, such as length or temperature.
- 2 Pick the unit to convert from and the unit to convert to.
- 3 Type a value to see the converted result straight away.
Frequently asked questions
What is 100 °F in °C?
100 degrees Fahrenheit equals 37.778 degrees Celsius. Worked out: (100 − 32) × 5/9 = 37.778.
How do I convert Fahrenheit to Celsius?
Use the formula °C = (°F − 32) × 5/9.
How do I convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5 and add 32. For example, 20 °C × 9/5 + 32 = 68 °F.
How many centimetres are in an inch?
One inch is exactly 2.54 centimetres, and one foot is 30.48 centimetres.
Is a kilobyte 1,000 or 1,024 bytes?
In SI units a kilobyte (kB) is 1,000 bytes. A kibibyte (KiB) is 1,024 bytes. Some operating systems still use "KB" to mean 1,024 bytes.