38 Réaumur to Rankine
Quick answer
38 Réaumur (°Ré) equals
577.17 °R
To convert 38 Réaumurs to Rankines, multiply by 493.92. Therefore, 38 Réaumur (°Ré) equals 577.17 Rankine (°R).
Formula: °R = ((°Ré × 5/4) + 273.15) × 9/5. Calculation: 577.17 °R. Reverse: °Ré = (°R - 491.67) × 4/9.
Convert Réaumur (°Ré) to Rankine (°R) online with our free unit converter. Calculated using formula: °R = ((°Ré × 5/4) + 273.15) × 9/5. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Réaumur to Rankine
- Step 1 — start with the formula. °R = ((°Ré × 5/4) + 273.15) × 9/5
- Step 2 — substitute your figure. Apply the formula to 38 °Ré.
- Step 3 — read the result. 38 °Ré = 577.17 °R
- Step 4 — check it in reverse. °Ré = (°R - 491.67) × 4/9 returns 38 °Ré, which matches the figure you started with.
Temperature Converter
5 units available
38 °Ré = 577.17 °R
Formula:
°R = ((°Ré × 5/4) + 273.15) × 9/5With your value: 38 °Ré = 577.17 °R
Other Réaumur to Rankine conversions
Réaumur to Rankine Conversion Table
| Réaumur (°Ré) | Rankine (°R) |
|---|---|
| 0.5 | 492.795 |
| 1 | 493.92 |
| 2 | 496.17 |
| 5 | 502.92 |
| 10 | 514.17 |
| 15 | 525.42 |
| 20 | 536.67 |
| 25 | 547.92 |
| 50 | 604.17 |
| 100 | 716.67 |
| 250 | 1,054.17 |
| 500 | 1,616.67 |
| 1000 | 2,741.67 |
Rankine to Réaumur Conversion Table
| Rankine (°R) | Réaumur (°Ré) |
|---|---|
| 0.5 | -218.297778 |
| 1 | -218.075556 |
| 2 | -217.631111 |
| 5 | -216.297778 |
| 10 | -214.075556 |
| 15 | -211.853333 |
| 20 | -209.631111 |
| 25 | -207.408889 |
| 50 | -196.297778 |
| 100 | -174.075556 |
| 250 | -107.408889 |
| 500 | 3.702222 |
| 1000 | 225.924444 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Réaumur (°Ré)
Temperature
Traceable to the kelvin, defined by fixing the Boltzmann constant at 1.380 649 × 10⁻²³ J/K. Celsius and Fahrenheit are exact affine transforms of the kelvin scale.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Rankine (°R)
Temperature
Traceable to the kelvin, defined by fixing the Boltzmann constant at 1.380 649 × 10⁻²³ J/K. Celsius and Fahrenheit are exact affine transforms of the kelvin scale.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Réaumur to Rankine
This conversion uses an offset formula, so it cannot be described by a single multiplication factor.
Formula: °R = ((°Ré × 5/4) + 273.15) × 9/5
Reverse: °Ré = (°R - 491.67) × 4/9
Step-by-Step Example
- Start with your value in Réaumur. For example: 5 °Ré
- Apply °R = ((°Ré × 5/4) + 273.15) × 9/5
- The result is: 502.92 °R
Réaumur and Rankine Relationship
This calculation facilitates standardized conversion between recognized units of temperature. Unlike simple multiplicative factors, this conversion follows an affine calculation model: °R = ((°Ré × 5/4) + 273.15) × 9/5. Understanding the relationship between Réaumur and Rankine is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Réaumur
The Réaumur scale sets water's freezing point at 0 °Ré and its boiling point at 80 °Ré. It survives in a few European cheese and syrup recipes.
Common uses of Réaumur: historic recipes, history of science.
About Rankine
The Rankine scale is an absolute temperature scale using Fahrenheit-sized degrees: 0 °R is absolute zero and water freezes at 491.67 °R.
Common uses of Rankine: US thermodynamics, combustion engineering.
Frequently Asked Questions
- What is 38 Réaumur in Rankine?
- 38 Réaumur equals 577.17 Rankine.
- How many Rankines are in 1 Réaumur?
- There are exactly 493.92 Rankines in 1 Réaumur.
- What is the formula to convert Réaumur to Rankine?
- The formula to convert Réaumur to Rankine is: °R = ((°Ré × 5/4) + 273.15) × 9/5. For example, to convert 10 Réaumurs to Rankines, you would apply the formula to 10.
- What is a Réaumur?
- The Réaumur scale sets water's freezing point at 0 °Ré and its boiling point at 80 °Ré. It survives in a few European cheese and syrup recipes.
- What is a Rankine?
- The Rankine scale is an absolute temperature scale using Fahrenheit-sized degrees: 0 °R is absolute zero and water freezes at 491.67 °R.
- What are the common uses of Réaumur?
- The Réaumur is commonly used in historic recipes, history of science.
Related Temperature Conversions
Cite this page
UnitConvertLab. (2026). 38 Réaumur to Rankine. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/38-reaumur-to-rankine