Fahrenheit to Celsius Converter

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Enter the temperature value in the scale chosen above.
°F
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Converted temperatureHot
37
Celsius37°C
Fahrenheit98.6°F
Kelvin310.15K
Rankine558.27°R
37 °C
Freezing or below<0Cold0-10Mild to warm10-30Hot30-100Boiling+100+

98.6°F equals 37°C.

  • All four conversions at once: 37°C, 98.6°F, 310.15K, 558.27°R.
  • The Fahrenheit-to-Celsius formula subtracts 32 first (to align freezing points) then scales by 5/9, because 180 Fahrenheit degrees span the same range as 100 Celsius degrees.
  • Kelvin and Rankine are absolute scales: zero means no thermal energy at all. Kelvin uses Celsius-size degrees; Rankine uses Fahrenheit-size degrees.
  • The two relative scales (°F and °C) cross at exactly -40: -40°F = -40°C.

Next stepTo convert back, multiply by 9/5 and add 32: C x 9/5 + 32.

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