Temperature Converter | Free Online Calculator - CalcDeck

Temperature Converter Calculator

Convert between Celsius, Fahrenheit, and Kelvin instantly with our free online calculator.

Understanding Temperature Conversion

Common Temperature Scales

There are three main temperature scales used worldwide:

  • Celsius (°C): The most widely used scale internationally. Water freezes at 0°C and boils at 100°C.
  • Fahrenheit (°F): Common in the United States. Water freezes at 32°F and boils at 212°F.
  • Kelvin (K): The scientific standard, used in physics and chemistry. 0K is absolute zero (-273.15°C).

Key Temperature Points

  • Room temperature: ~20°C (68°F)
  • Body temperature: 37°C (98.6°F)
  • Boiling point of water: 100°C (212°F)
  • Freezing point of water: 0°C (32°F)