Universal Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly with real-time formula display.

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Converted Result:
100 °C = 212 °F
Formula: (°C × 9/5) + 32 = °F
All Units at a Glance:

How to Convert Temperature Units

Temperature conversions use specific thermodynamic scales. Here are the core standard formulas:

  • Celsius to Fahrenheit: °F = (°C × 9/5) + 32
  • Fahrenheit to Celsius: °C = (°F - 32) × 5/9
  • Celsius to Kelvin: K = °C + 273.15
  • Kelvin to Celsius: °C = K - 273.15
  • Fahrenheit to Kelvin: K = (°F - 32) × 5/9 + 273.15

Standard Temperature Reference Points

PhenomenonCelsius (°C)Fahrenheit (°F)Kelvin (K)
Absolute Zero-273.15 °C-459.67 °F0 K
Freezing point of water0 °C32 °F273.15 K
Average Room Temperature20 °C68 °F293.15 K
Normal Human Body Temperature37 °C98.6 °F310.15 K
Boiling point of water100 °C212 °F373.15 K