Boiling point of water
Input: 100 C
Output: 212 F
(100 x 9/5) + 32 = 212.
Celsius to Fahrenheit converter
Use this temperature converter for weather, cooking, and lab references.
Fahrenheit:
Formula and algorithm
- Fahrenheit = (Celsius x 9/5) + 32
- This is an affine conversion with slope 1.8 and offset 32.
- The converter handles sub-zero values and decimals.
Worked examples
Room temperature
Input: 22 C
Output: 71.6 F
(22 x 9/5) + 32 = 71.6.
Cold day
Input: -10 C
Output: 14 F
(-10 x 9/5) + 32 = 14.
FAQ
Is 0 C equal to 32 F?
Yes. Plugging 0 into the formula gives 32 F.
Can this convert decimal temperatures?
Yes. Inputs like 36.6 C are supported.
Do you round automatically?
Results are rounded for display while preserving internal precision.
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Updated: June 7, 2026