Temperature Converter 2026 - Universal Temperature Calculator | Thiyagi

Universal Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly

Common Temperatures

Description °C °F K
Absolute Zero -273.15 -459.67 0
Water Freezes 0 32 273.15
Room Temperature 20 68 293.15
Water Boils 100 212 373.15

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
Fahrenheit to Rankine:
°R = °F + 459.67

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 starting at 0K
  • Rankine: Absolute scale using Fahrenheit degrees

Applications

  • Weather monitoring
  • Cooking & baking
  • Scientific research
  • Engineering calculations
  • HVAC systems

Global Usage

  • Celsius: Most countries worldwide
  • Fahrenheit: USA, some Caribbean islands
  • Kelvin: Scientific and engineering
  • Rankine: Engineering (especially USA)