Unit System
Temperature Conversion Calculator
Convert temperatures between Celsius, Fahrenheit, and Kelvin. Understand how these temperature scales relate and why they're different.
Convert temperatures between Celsius, Fahrenheit, and Kelvin. Understand how these temperature scales relate and why they're different.
Convert Between Temperature Scales
The Temperature Conversion Calculator allows you to instantly convert between the three most commonly used temperature scales: Celsius, Fahrenheit, and Kelvin. Each scale has its own history and applications, making this tool essential for science, cooking, weather, and international communication.
Celsius is used worldwide for everyday purposes, Fahrenheit is common in the United States, and Kelvin is the standard in scientific research. This calculator shows all three conversions simultaneously, making it easy to understand how these scales relate to each other.
Enter a temperature to see all conversions
Celsius (°C) - Based on the freezing (0°C) and boiling (100°C) points of water. Used worldwide for everyday purposes.
Fahrenheit (°F) - Water freezes at 32°F and boils at 212°F. Primarily used in the United States.
Kelvin (K) - The SI unit for temperature. 0 K is absolute zero, the lowest possible temperature. Used in science.
Celsius to Fahrenheit
Celsius to Kelvin
| Description | °C | °F | K |
|---|---|---|---|
| Absolute Zero | -273.15 | -459.67 | 0 |
| Water Freezes | 0 | 32 | 273.15 |
| Room Temp | 20-25 | 68-77 | 293-298 |
| Body Temp | 37 | 98.6 | 310.15 |
| Water Boils | 100 | 212 | 373.15 |
Temperature conversions are not linear ratios. A 1° change in Celsius equals 1.8° in Fahrenheit, but the scales don't share zero point.