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Free online tool for converting length, weight, temperature and other units

Temperature Converter

Free temperature converter. Convert between Celsius, Fahrenheit, and Kelvin degrees.

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Convert between Celsius (°C), Fahrenheit (°F) and Kelvin (K). Handy for weather, cooking and science. Enter a value, choose units — instant results.

Unit conversions

  • °F = (°C × 9/5) + 32
  • °C = (°F − 32) × 5/9
  • K = °C + 273.15
  • °C = K − 273.15

Common examples

  • Example: 20 °C = 68 °F
  • Example: 0 °C = 273.15 K
  • Example: 100 °F ≈ 37.78 °C

Common pitfalls

  • Kelvin uses K (no degree sign)
  • Rounding: cooking vs science needs
  • 1 °C = 1.8 °F step size

FAQ

What is 20 °C in °F?
20 °C = 68 °F.
What is 68 °F in °C?
68 °F = 20 °C.
What is 25 °C in K?
25 °C = 298.15 K.

Related converters

Standard formulas (BIPM). Rounded reasonably.

Temperature Converter - UnitsBuddy