Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, Rankine, and more. Includes common reference points and quick presets.
Temperature Converter
Common Reference Points
| Description | C | F | K |
|---|---|---|---|
| Absolute zero | -273.15 | -459.67 | 0 |
| Water freezes | 0 | 32 | 273.15 |
| Room temperature | 20 | 68 | 293.15 |
| Body temperature | 37 | 98.6 | 310.15 |
| Water boils | 100 | 212 | 373.15 |
| Oven (moderate) | 177 | 350 | 450.15 |
| Sun surface | 5505 | 9941 | 5778 |
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What is a Temperature Converter?
Temperature is a measure of thermal energy. Different scales are used around the world and in science. Celsius (C) is used in most countries for everyday temperature. Fahrenheit (F) is used primarily in the United States. Kelvin (K) is the SI base unit used in science and engineering.
The Celsius scale is based on water: 0 C is the freezing point and 100 C is the boiling point at sea level. Fahrenheit sets these at 32 F and 212 F respectively. Kelvin starts at absolute zero (-273.15 C), the theoretical lowest possible temperature.
How to Use the Temperature Converter
Enter a temperature value, select your starting unit, and instantly see conversions to all other scales.
- 1
Enter a value
Type the temperature number in the input field.
- 2
Select the source unit
Choose Celsius, Fahrenheit, or Kelvin from the dropdown.
- 3
Read the results
All conversions update instantly. Click a reference row to load that temperature.
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