Conversion formulas and common reference points for Celsius, Fahrenheit, and Kelvin. For the reasoning behind these formulas, see How Temperature Conversion Works.
| Reference | Celsius | Fahrenheit | Kelvin |
|---|---|---|---|
| Absolute zero | -273.15 | -459.67 | 0 |
| Water freezes | 0 | 32 | 273.15 |
| Average body temperature | 37 | 98.6 | 310.15 |
| Water boils | 100 | 212 | 373.15 |
The Temperature Converter converts between Celsius, Fahrenheit, and Kelvin instantly.
Temperature Converter
The Fahrenheit scale sets water’s freezing point at 32 and boiling point at 212, a 180-degree span. Celsius uses a 100-degree span for the same range, so the ratio between the two scales works out to 9/5.
No. Zero Kelvin is absolute zero, the coldest temperature theoretically possible, so Kelvin values never go below zero.
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