Réaumur to Rankine Converter
1 Réaumur is equal to 2.25Rankines (°R). To convert réaumurs to rankines, multiply the value by 2.25 or use the interactive formula breakdown and reference tables below.
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Step-by-Step Mathematical Derivation
To convert any quantity from Réaumur to Rankine, multiply the quantity by the constant conversion factor 2.25.
To reverse the operation, multiply your Rankine figure by 0.4444444 (or divide by 2.25).
- Identify the starting value in Réaumur (°Ré).
- Apply the exact linear conversion factor:
1 °Ré = 2.25 °R. - Multiply the input value by 2.25 to obtain the exact measurement in Rankine (°R).
- Verify precision against standard BIPM / NIST SP 811 statutory guidelines.
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Academic & Research Citation Exporter
Cite this mathematical formula and conversion factor in research papers and wikis
@misc{ai_unit_converter_réaumur_to_rankine,
author = {AI Unit Converters Standards Board},
title = {Exact Réaumur to Rankine Conversion Factor and Mathematical Derivation},
year = {2026},
howpublished = {\url{https://aiunitconverters.com/temperature/reaumur-to-r}},
note = {Derived from NIST Special Publication 811 and BIPM SI Brochure}
}📊Réaumur to Rankine Conversion Tables
| -40°Ré | 419.67°R |
| -20°Ré | 455.67°R |
| 0°Ré | 491.67°R |
| 10°Ré | 509.67°R |
| 20°Ré | 527.67°R |
| 25°Ré | 536.67°R |
| 30°Ré | 545.67°R |
| 37°Ré | 558.27°R |
| 50°Ré | 581.67°R |
| 75°Ré | 626.67°R |
| 100°Ré | 671.67°R |
| 150°Ré | 761.67°R |
| 200°Ré | 851.67°R |
| 250°Ré | 941.67°R |
| 300°Ré | 1,031.67°R |
| 500°Ré | 1,391.67°R |
| -40°R | -295.3722°Ré |
| -20°R | -284.2611°Ré |
| 0°R | -273.15°Ré |
| 10°R | -267.5944°Ré |
| 20°R | -262.0389°Ré |
| 25°R | -259.2611°Ré |
| 30°R | -256.4833°Ré |
| 37°R | -252.5944°Ré |
| 50°R | -245.3722°Ré |
| 75°R | -231.4833°Ré |
| 100°R | -217.5944°Ré |
| 150°R | -189.8167°Ré |
| 200°R | -162.0389°Ré |
| 250°R | -134.2611°Ré |
| 300°R | -106.4833°Ré |
| 500°R | 4.6278°Ré |
❓ Frequently Asked Questions: Réaumur to Rankine
How do you convert Réaumurs to Rankines?▼
To convert from Réaumur to Rankine, apply the standard thermodynamic conversion formula shown in the derivation card above.
How many Rankines are in 1 Réaumur?▼
There are exactly 493.47Rankines (°R) in 1 Réaumur (°Ré).
Are these calculations calibrated against official measurement standards?▼
Yes. All conversion factors on AI Unit Converters are calibrated and cross-verified against official BIPM SI Brochure (9th Edition), NIST SP 811, and ISO 80000 measurement metrology standards.