Romer is a historical temperature scale where water freezes at 7.5° and boils at 60°.
Romer to Kelvin
Convert romer (°Ro) to kelvin (K) instantly. Free online temperature converter with formulas, tables and examples.
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Kelvin is the SI absolute temperature scale, where 0 K is absolute zero.
K = (°Ro × 40/21) + 36241/140
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Formula
K = (°Ro × 40/21) + 36241/140
°Ro = (K × 21/40) − 135.90375
Conversion table
| -13.50 °Ro | 233.15 K |
| -3.00 °Ro | 253.15 K |
| 7.50 °Ro | 273.15 K |
| 12.75 °Ro | 283.15 K |
| 18.00 °Ro | 293.15 K |
| 20.62 °Ro | 298.15 K |
| 23.25 °Ro | 303.15 K |
| 26.93 °Ro | 310.15 K |
| 60.00 °Ro | 373.15 K |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is Romer (°Ro). Romer is a historical temperature scale where water freezes at 7.5° and boils at 60°.
What is the destination unit in this conversion?
The destination unit is Kelvin (K). Kelvin is the SI absolute temperature scale, where 0 K is absolute zero.
How do I convert Romer to Kelvin?
Use the formula K = (°Ro × 40/21) + 36241/140. For example, converting a sample value follows the same equation shown in the conversion table above.
Is the Romer to Kelvin 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 Kelvin.
Can I convert Kelvin back to Romer?
Yes. Use the reverse formula °Ro = (K × 21/40) − 135.90375 to convert Kelvin back to Romer.
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About this conversion
This page converts Romer (°Ro) into Kelvin (K), two scales used to measure temperature.
Romer to Kelvin conversions come up in science, engineering, weather reporting, and historical references, depending on which scale is in use.
The formula is K = (°Ro × 40/21) + 36241/140, 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.
Romer is a historical temperature scale where water freezes at 7.5° and boils at 60°. Kelvin is the SI absolute temperature scale, where 0 K is absolute zero.