Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin temperature scales with formulas explained.
Temperature scales differ worldwide: the US uses Fahrenheit, most countries use Celsius, and scientists use Kelvin. Convert between all three with standard formulas — for example, 100°C (boiling water) equals 212°F.
Essential for cooking, weather, travel, HVAC settings, and laboratory work. Body temperature 98.6°F equals 37°C; oven 350°F equals about 177°C.
Results update live as you adjust the input value. Kelvin conversions start at absolute zero — negative Kelvin is not physically meaningful.
Free, instant, works on any device. Bookmark for kitchen and workshop use.
Formula
°F = (°C × 9/5) + 32 · °C = (°F − 32) × 5/9 · K = °C + 273.15
Common Uses
- ✓Recipe oven temperature conversions
- ✓Weather forecast comparisons while traveling
- ✓Science and chemistry homework
- ✓Server room and HVAC monitoring
- ✓Medical and body temperature readings
How to Use the Temperature Converter
- 1
Enter temperature
Type the value in Celsius, Fahrenheit, or Kelvin.
- 2
View all scales
See equivalent values in the other temperature units.
💡 Tips & Tricks
- •Rough guide: double °C and add 30 for a quick °F estimate (exact formula is better).
- •Human body temperature is about 37°C or 98.6°F.
- •Freezer temperature is around -18°C (0°F).
Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
What is Kelvin used for?
Is -40 the same in Celsius and Fahrenheit?
Why do oven recipes differ by country?
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