Temperature Calculator
Convert between Celsius, Fahrenheit, and Kelvin temperature scales
Temperature Conversion
Conversion Results
Enter a temperature value to see conversions
Temperature Scales Information
Celsius (°C)
The Celsius scale is based on the freezing point (0°C) and boiling point (100°C) of water at standard atmospheric pressure. It's the most commonly used temperature scale worldwide.
Key Points:
- • Water freezes at 0°C
- • Water boils at 100°C
- • Human body: ~37°C
- • Room temperature: ~20-25°C
Fahrenheit (°F)
The Fahrenheit scale sets the freezing point of water at 32°F and the boiling point at 212°F. It's primarily used in the United States and a few other countries.
Key Points:
- • Water freezes at 32°F
- • Water boils at 212°F
- • Human body: ~98.6°F
- • Room temperature: ~68-77°F
Kelvin (K)
The Kelvin scale is the SI unit of temperature and starts at absolute zero (0K), the theoretical lowest possible temperature. It doesn't use the degree symbol (°).
Key Points:
- • Absolute zero: 0K
- • Water freezes at 273.15K
- • Water boils at 373.15K
- • Used in scientific calculations
Conversion Formulas
Celsius to Fahrenheit:
°F = (°C × 9/5) + 32
Fahrenheit to Celsius:
°C = (°F - 32) × 5/9
Celsius to Kelvin:
K = °C + 273.15
Common Temperature References
| Event/Condition | Celsius | Fahrenheit | Kelvin |
|---|---|---|---|
| Absolute Zero | -273.15°C | -459.67°F | 0K |
| Water Freezes | 0°C | 32°F | 273.15K |
| Room Temperature | 20-25°C | 68-77°F | 293-298K |
| Human Body | 37°C | 98.6°F | 310.15K |
| Water Boils | 100°C | 212°F | 373.15K |
| Oven Baking | 180-220°C | 350-425°F | 453-493K |