Rankine is an absolute temperature scale that uses Fahrenheit-sized degrees.
Rankine to Romer
Convert rankine (°R) to romer (°Ro) instantly. Free online temperature converter with formulas, tables and examples.
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Romer is a historical temperature scale where water freezes at 7.5° and boils at 60°.
°Ro = (°R × 7/24) − 135.90375
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Formula
°Ro = (°R × 7/24) − 135.90375
°R = (°Ro × 24/7) + 326169/700
Conversion table
| 419.67 °R | -13.50 °Ro |
| 455.67 °R | -3.00 °Ro |
| 491.67 °R | 7.50 °Ro |
| 509.67 °R | 12.75 °Ro |
| 527.67 °R | 18.00 °Ro |
| 536.67 °R | 20.62 °Ro |
| 545.67 °R | 23.25 °Ro |
| 558.27 °R | 26.93 °Ro |
| 671.67 °R | 60.00 °Ro |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is Rankine (°R). Rankine is an absolute temperature scale that uses Fahrenheit-sized degrees.
What is the destination unit in this conversion?
The destination unit is Romer (°Ro). Romer is a historical temperature scale where water freezes at 7.5° and boils at 60°.
How do I convert Rankine to Romer?
Use the formula °Ro = (°R × 7/24) − 135.90375. For example, converting a sample value follows the same equation shown in the conversion table above.
Is the Rankine to Romer conversion exact?
Yes. The relationship between the two scales is a fixed linear equation, so the conversion is mathematically exact with no rounding of constants.
Where is this conversion commonly used?
Temperature conversions like this one appear in science, engineering, weather reporting, and historical or regional references that still use Romer.
Can I convert Romer back to Rankine?
Yes. Use the reverse formula °R = (°Ro × 24/7) + 326169/700 to convert Romer back to Rankine.
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About this conversion
This page converts Rankine (°R) into Romer (°Ro), two scales used to measure temperature.
Rankine to Romer conversions come up in science, engineering, weather reporting, and historical references, depending on which scale is in use.
The formula is °Ro = (°R × 7/24) − 135.90375, a linear equation that accounts for both the scale factor and the zero-point offset between the two scales.
The conversion is exact: it uses fixed constants defined by the relationship between the two scales, not a measured or approximate factor.
Rankine is an absolute temperature scale that uses Fahrenheit-sized degrees. Romer is a historical temperature scale where water freezes at 7.5° and boils at 60°.