°R

What is a Rankine?

Temperature Unit

Definition

Rankine is an absolute temperature scale where 0°R equals absolute zero. It uses Fahrenheit-sized degrees, so 0°R = -459.67°F.

Popular Rankine Conversions

Most common conversions from Rankine

1 °R = °C Rankine to Celsius 1 °R = °F Rankine to Fahrenheit 1 °R = K Rankine to Kelvin

History

The Rankine scale was proposed by Scottish engineer William John Macquorn Rankine in 1859. It is used primarily in engineering thermodynamics in the US.

Common Uses

  • Engineering thermodynamics in the US
  • Aerospace engineering calculations
  • Some industrial applications
  • Scientific research

Fun Facts

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Water freezes at 491.67°R (32°F)

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Rankine is to Fahrenheit what Kelvin is to Celsius

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The scale is rarely used outside American engineering

All Rankine Conversions

Rankine to Celsius °R → °C Rankine to Fahrenheit °R → °F Rankine to Kelvin °R → K

Related Units

°F Fahrenheit K Kelvin °C Celsius