Rankine (°R)
Definition: Rankine (°R) is a thermodynamic temperature scale that starts at absolute zero, using Fahrenheit increments. It is used in thermodynamics, particularly in the US.
History: The Rankine scale was developed by William John Macquorn Rankine in the 1850s, inspired by Kelvin but with Fahrenheit degrees. It was designed for thermodynamic calculations in systems using the Fahrenheit scale.
Current Use: Rankine is primarily used in thermodynamics in the US, especially in analyzing heat engines, refrigeration cycles, and energy systems. It is more specialized and less common than other temperature scales.
Celsius (°C)
Definition: Celsius (°C) is a temperature scale in which water freezes at 0°C and boils at 100°C under standard atmospheric conditions. It is used worldwide in scientific and everyday contexts.
History: The Celsius scale was developed in 1742 by Anders Celsius, with the original scale using the freezing point of water at 0°C and boiling at 100°C. It was later reversed to the current standard. The scale became the standard in scientific use by 1967, based on the Kelvin scale.
Current Use: Celsius is widely used for weather, cooking, and in scientific applications, especially in countries using the metric system. It is the standard temperature scale in most countries.
Quick Conversion Table Rankine (°R) to Celsius (°C)
1 Rankine (°R) equal to -272.594 Celsius (°C)
5 Rankine (°R) equal to -270.372 Celsius (°C)
10 Rankine (°R) equal to -267.594 Celsius (°C)
20 Rankine (°R) equal to -262.039 Celsius (°C)
30 Rankine (°R) equal to -256.483 Celsius (°C)
50 Rankine (°R) equal to -245.372 Celsius (°C)
75 Rankine (°R) equal to -231.483 Celsius (°C)
100 Rankine (°R) equal to -217.594 Celsius (°C)