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Convert between Celsius, Fahrenheit, and Kelvin instantly. Accurate formulas displayed below.
Conversion Formulas
°F = °C × 9/5 + 32
°C = (°F − 32) × 5/9
K = °C + 273.15
°C = K − 273.15
°F = (K − 273.15) × 9/5 + 32
K = (°F − 32) × 5/9 + 273.15
How It Works
The Temperature Converter allows you to convert between the three most commonly used temperature scales: Celsius, Fahrenheit, and Kelvin. Simply select your source and target units, enter a value, and see the result instantly.
Key reference points:
- Water freezing point: 0°C = 32°F = 273.15 K
- Water boiling point: 100°C = 212°F = 373.15 K
- Absolute zero: −273.15°C = −459.67°F = 0 K
- Body temperature: 37°C = 98.6°F = 310.15 K
The Celsius scale is used in most countries worldwide and in scientific contexts. Fahrenheit is primarily used in the United States. The Kelvin scale is the SI unit for thermodynamic temperature and is used extensively in physics and chemistry. All conversions use the exact mathematical formulas shown above, ensuring complete accuracy.