Every Calculator

Temperature Converters

Convert between Celsius, Fahrenheit, and Kelvin temperature scales with accurate formulas

Celsius to FahrenheitPopular
Convert Celsius to Fahrenheit temperature
Fahrenheit to CelsiusPopular
Convert Fahrenheit to Celsius temperature
Celsius to Kelvin
Convert Celsius to Kelvin temperature
Kelvin to Celsius
Convert Kelvin to Celsius temperature
Fahrenheit to Kelvin
Convert Fahrenheit to Kelvin temperature
Kelvin to Fahrenheit
Convert Kelvin to Fahrenheit temperature
Temperature Reference Points
Common temperature values in all three scales
Reference PointCelsius (°C)Fahrenheit (°F)Kelvin (K)
Absolute Zero-273.15-459.670
Water Freezing032273.15
Room Temperature2068293.15
Human Body3798.6310.15
Water Boiling100212373.15
Temperature Scales
  • Celsius: Water freezes at 0°C, boils at 100°C
  • Fahrenheit: Water freezes at 32°F, boils at 212°F
  • Kelvin: Absolute temperature scale, 0K = absolute zero
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
Usage Tips
  • Use Celsius for scientific calculations
  • Fahrenheit is common in the United States
  • Kelvin is used in physics and chemistry
  • All converters show step-by-step calculations