Temperature Converter
Convert between Fahrenheit, Celsius, and Kelvin instantly. Type any value — the other units update in real time. No rounding errors, no sign-up required.
Common Reference Points (click to load)
| Reference | °C | °F | K |
|---|---|---|---|
| Absolute zero | -273.15 | -459.67 | 0 |
| Water freezes | 0 | 32 | 273.15 |
| Room temperature | 22 | 71.6 | 295.15 |
| Body temperature | 37 | 98.6 | 310.15 |
| Water boils | 100 | 212 | 373.15 |
Common Temperature References
Some temperatures come up constantly in everyday life. Use the reference table in the converter above to load any of these instantly, or refer to the values below.
Body temperature
37°C / 98.6°F / 310.15 K — normal average for adults.
Water boiling point
100°C / 212°F / 373.15 K — at sea-level pressure.
Water freezing point
0°C / 32°F / 273.15 K — the basis of the Celsius scale.
Absolute zero
-273.15°C / -459.67°F / 0 K — the lowest possible temperature.
Understanding Temperature Scales
Fahrenheit is the primary temperature scale used in the United States for everyday weather, cooking, and body temperature. It was defined with 32°F as the freezing point of water and 212°F as the boiling point, giving a 180-degree span between those two fixed points.
Celsius (formerly Centigrade) is the standard in most of the world and all scientific contexts outside the US. Its two anchor points — 0°C (freezing) and 100°C (boiling) — make it intuitive for everyday use. Kelvin shares the same degree size as Celsius but starts at absolute zero (0 K = -273.15°C), making it the preferred unit in physics, chemistry, and engineering where negative temperatures are meaningless or inconvenient.