Degrees Rankine to Degrees Celsius
1 °R ≈ -272.6 °C. Edit either value to convert instantly.
Conversion formula
°C = ((°R × (5 / 9)) + (0) × (1)) − (273.15)1 °R ≈ -272.594 °C
degree Rankine (°R)
Rankine is an absolute temperature scale with 1 °R = 5/9 K; 0 °R is absolute zero.
Source: NIST SP 811, Appendix B.9: conversion factors by quantity
degree Celsius (°C)
The Celsius scale has the same interval as kelvin, with 0 °C = 273.15 K; water freezes near 0 °C at standard pressure.
Source: BIPM, The International System of Units (SI), 9th edition
Conversion table
| °R | °C |
|---|---|
| ≈ -272.594 | |
| ≈ -272.039 | |
| ≈ -270.372 | |
| ≈ -267.594 | |
| ≈ -264.817 | |
| ≈ -262.039 | |
| ≈ -259.261 | |
| ≈ -256.483 | |
| ≈ -250.928 | |
| = -248.15 |
| °R | °C |
|---|---|
| ≈ -245.372 | |
| ≈ -239.817 | |
| ≈ -234.261 | |
| ≈ -228.706 | |
| = -223.15 | |
| ≈ -217.594 | |
| ≈ -189.817 | |
| ≈ -184.261 | |
| ≈ -178.706 | |
| = -173.15 |
Frequently asked questions
How many degrees Celsius are in 1 degree Rankine?
1 °R ≈ -272.6 °C. °C = ((°R × (5 / 9)) + (0) × (1)) − (273.15)
How do I convert °R to °C?
°C = ((°R × (5 / 9)) + (0) × (1)) − (273.15)
Why does this conversion need more than multiplication?
Temperature scales have different zero points. Apply the scale and offset in the formula; below absolute zero is a mathematical result only.
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