Freezing
- Input
- 0 °C
- Expected output
- 32 °F
Common reference point.
celsius to fahrenheit
Celsius to Fahrenheit
Temperature has an offset, so it cannot be converted by a simple factor like length or mass.
Approved intentConvert Celsius temperature to Fahrenheit.
Tool presetThe Unit Converter below already opens in Temperature mode with `25 °C → °F`, so you can try other values quickly.
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77
unitConverter.summaryLabel25 °C = 77 °FunitConverter.categoryNote
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Formula
- The formula is °F = °C × 9/5 + 32.
- Water freezes at 0 °C or 32 °F; boils at 100 °C or 212 °F at sea level.
°C → °F examples
Room temperature
- Input
- 25 °C
- Expected output
- 77 °F
Everyday example.
Frequently asked questions
Why add 32?
Because the scales have different zero points; Fahrenheit defines water freezing at 32 °F.
Does Kelvin use the same formula?
No. Kelvin is an absolute scale: K = °C + 273.15.