Temperature Converter
Convert between Fahrenheit, Celsius, and Kelvin instantly. See how temperatures compare across different scales with context about what each temperature feels like.
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Common Temperature References
Temperature Conversion Formulas
Fahrenheit to Celsius
Subtract 32, then multiply by 5/9 (or divide by 1.8)
Celsius to Fahrenheit
Multiply by 9/5 (or 1.8), then add 32
Celsius to Kelvin
Simply add 273.15 to the Celsius value
Understanding Temperature Scales
Fahrenheit
Developed by Daniel Fahrenheit in 1724. Water freezes at 32°F and boils at 212°F. Primarily used in the United States for weather and everyday temperatures.
Celsius
Developed by Anders Celsius in 1742. Water freezes at 0°C and boils at 100°C. Used worldwide for scientific and everyday purposes, except in the US.
Kelvin
The SI unit of temperature, starting at absolute zero (−273.15°C). Used in scientific contexts. One Kelvin equals one degree Celsius in magnitude.
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What apparent temperature really means and how wind chill and heat index are calculated.
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