Temperature Unit Converter

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Temperature Conversion for All Needs

Convert between all major temperature scales with precision. Our temperature converter handles Celsius, Fahrenheit, Kelvin, and Rankine scales with scientific accuracy, making it perfect for scientific applications, cooking, and everyday weather conversions.

Common Temperature References

  • Water freezing point: 0°C = 32°F = 273.15K
  • Water boiling point: 100°C = 212°F = F = 373.15K
  • Room temperature: 20-25°C = 68-77°F
  • Body temperature: 37°C = 98.6°F = 310.15K
  • Absolute zero: -273.15°C = -459.67°F = 0K

Temperature Scales

Unlike other units, temperature scales have different zero points and different size degrees:

  • Kelvin (K) is the SI base unit, starting at absolute zero
  • Celsius (°C) sets 0° at water's freezing point
  • Fahrenheit (°F) sets 0° at the freezing point of a brine solution
  • Rankine (°R) starts at absolute zero but uses Fahrenheit-sized degrees

Understanding Temperature Measurements

Temperature measures the average kinetic energy of particles in a substance, indicating how hot or cold it is. Unlike most unit conversions, temperature conversions involve both a multiplier and an offset, making them more complex than simple ratio conversions.

Precision: 15 decimal places
Standard: ISO 80000-5:2019

Temperature Conversion Formulas

Celsius Conversions

  • Celsius to Fahrenheit: °F = (°C × 9/5) + 32
  • Celsius to Kelvin: K = °C + 273.15
  • Celsius to Rankine: °R = (°C × 9/5) + 491.67

Fahrenheit Conversions

  • Fahrenheit to Celsius: °C = (°F - 32) × 5/9
  • Fahrenheit to Kelvin: K = (°F - 32) × 5/9 + 273.15
  • Fahrenheit to Rankine: °R = °F + 459.67

Kelvin Conversions

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