Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly.
Common References
| Reference | °C | °F | K |
|---|---|---|---|
| Water freezing | 0 | 32 | 273.15 |
| Water boiling | 100 | 212 | 373.15 |
| Human body temp | 37 | 98.6 | 310.15 |
| Room temperature | 22 | 71.6 | 295.15 |
| Absolute zero | -273.15 | -459.67 | 0 |
How it works
Type a temperature in Celsius, Fahrenheit, or Kelvin and instantly see the converted values in all three scales. The conversion formula is applied in real time as you type.
Why use this tool?
Essential for travelers checking weather forecasts in foreign countries, cooks following international recipes, and science students working with different temperature scales. Free, instant, and accurate.
Frequently Asked Questions
What is the formula to convert Celsius to Fahrenheit?
°F = (°C × 9/5) + 32. E.g. 100°C = (100 × 1.8) + 32 = 212°F. The reverse: °C = (°F − 32) × 5/9.
What is Kelvin used for?
Kelvin is the SI unit of temperature used in science and engineering. Absolute zero (0 K = −273.15°C) is the lowest possible temperature. Kelvin is used in chemistry, physics, and astronomy.
What is normal body temperature in Fahrenheit and Celsius?
Normal body temperature is 37°C (98.6°F). A fever is generally considered above 38°C (100.4°F). These are averages — normal ranges vary between 36.1°C and 37.2°C (97°F–99°F).
Is this free?
Yes, completely free with instant conversion between Celsius, Fahrenheit, and Kelvin.
Rate this tool:
Was this tool helpful?