Temperature Converter

Convert temperatures between Celsius, Fahrenheit, Kelvin, and other scales

Common Temperatures

Absolute Zero
-273.15°C|-459.7°F
Liquid Nitrogen
-196°C|-320.8°F
Dry Ice
-78.5°C|-109.3°F
Water Freezes
0°C|32.0°F
Room Temperature
20°C|68.0°F
Human Body
37°C|98.6°F
Water Boils
100°C|212.0°F
Oven Temperature
180°C|356.0°F
Paper Burns
233°C|451.4°F
Lead Melts
327°C|620.6°F

Temperature Conversion 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

About Temperature Scales

Temperature Scales:

  • Celsius (°C): Water freezes at 0°C, boils at 100°C
  • Fahrenheit (°F): Water freezes at 32°F, boils at 212°F
  • Kelvin (K): Absolute temperature scale, 0K = absolute zero
  • Rankine (°R): Absolute scale based on Fahrenheit degrees
  • Réaumur (°Ré): Historical scale, water freezes at 0°, boils at 80°

Usage:

  • Celsius: Used worldwide, scientific applications
  • Fahrenheit: Used in United States, some Caribbean countries
  • Kelvin: Scientific and engineering applications
  • Rankine: Engineering applications in US
  • Réaumur: Rarely used, historical interest

Quick Reference:

Freezing Point of Water:

0°C = 32°F = 273.15K

Boiling Point of Water:

100°C = 212°F = 373.15K

Absolute Zero:

-273.15°C = -459.67°F = 0K