Celsius to Rankine Converter & Conversion Table
Rankine keeps Fahrenheit-size steps above absolute zero
Rankine is useful in US thermodynamics and heat-transfer work. Use it when an equation requires absolute temperature but the surrounding measurements use Fahrenheit-size degrees.
Engineering and physical reference temperatures
| Reference point | °C | °R |
|---|---|---|
| Absolute zero | -273.15°C | 0°R |
| Arctic winter day | -30°C | 437.67°R |
| Home freezer | -18°C | 459.27°R |
| Water freezes / ice melts | 0°C | 491.67°R |
| Refrigerator | 3°C | 497.07°R |
| Cool spring day | 10°C | 509.67°R |
| Comfortable room | 21°C | 529.47°R |
| Summer afternoon | 30°C | 545.67°R |
| Normal body temperature | 37°C | 558.27°R |
| Hot bath | 40°C | 563.67°R |
| Death Valley record heat | 56.7°C | 593.73°R |
| Water boils (sea level) | 100°C | 671.67°R |
| Moderate oven | 180°C | 815.67°R |
Celsius to Rankine conversion table
Use the compact table for common values. Open the extended table when you need a wider working range.
| Celsius (°C) | Rankine (°R) |
|---|---|
| -40°C | 419.67°R |
| -30°C | 437.67°R |
| -20°C | 455.67°R |
| -10°C | 473.67°R |
| 0°C | 491.67°R |
| 10°C | 509.67°R |
| 20°C | 527.67°R |
| 30°C | 545.67°R |
| 40°C | 563.67°R |
| 50°C | 581.67°R |
| 60°C | 599.67°R |
| 70°C | 617.67°R |
| 80°C | 635.67°R |
| 90°C | 653.67°R |
| 100°C | 671.67°R |
Open the full table: -273.15°C to 1000°C (149 values)
| Celsius (°C) | Rankine (°R) |
|---|---|
| -273.15°C | 0°R |
| -250°C | 41.67°R |
| -200°C | 131.67°R |
| -150°C | 221.67°R |
| -100°C | 311.67°R |
| -80°C | 347.67°R |
| -60°C | 383.67°R |
| -50°C | 401.67°R |
| -45°C | 410.67°R |
| -40°C | 419.67°R |
| -39°C | 421.47°R |
| -38°C | 423.27°R |
| -37°C | 425.07°R |
| -36°C | 426.87°R |
| -35°C | 428.67°R |
| -34°C | 430.47°R |
| -33°C | 432.27°R |
| -32°C | 434.07°R |
| -31°C | 435.87°R |
| -30°C | 437.67°R |
| -29°C | 439.47°R |
| -28°C | 441.27°R |
| -27°C | 443.07°R |
| -26°C | 444.87°R |
| -25°C | 446.67°R |
| -24°C | 448.47°R |
| -23°C | 450.27°R |
| -22°C | 452.07°R |
| -21°C | 453.87°R |
| -20°C | 455.67°R |
| -19°C | 457.47°R |
| -18°C | 459.27°R |
| -17°C | 461.07°R |
| -16°C | 462.87°R |
| -15°C | 464.67°R |
| -14°C | 466.47°R |
| -13°C | 468.27°R |
| -12°C | 470.07°R |
| -11°C | 471.87°R |
| -10°C | 473.67°R |
| -9°C | 475.47°R |
| -8°C | 477.27°R |
| -7°C | 479.07°R |
| -6°C | 480.87°R |
| -5°C | 482.67°R |
| -4°C | 484.47°R |
| -3°C | 486.27°R |
| -2°C | 488.07°R |
| -1°C | 489.87°R |
| 0°C | 491.67°R |
| 1°C | 493.47°R |
| 2°C | 495.27°R |
| 3°C | 497.07°R |
| 4°C | 498.87°R |
| 5°C | 500.67°R |
| 6°C | 502.47°R |
| 7°C | 504.27°R |
| 8°C | 506.07°R |
| 9°C | 507.87°R |
| 10°C | 509.67°R |
| 11°C | 511.47°R |
| 12°C | 513.27°R |
| 13°C | 515.07°R |
| 14°C | 516.87°R |
| 15°C | 518.67°R |
| 16°C | 520.47°R |
| 17°C | 522.27°R |
| 18°C | 524.07°R |
| 19°C | 525.87°R |
| 20°C | 527.67°R |
| 21°C | 529.47°R |
| 22°C | 531.27°R |
| 23°C | 533.07°R |
| 24°C | 534.87°R |
| 25°C | 536.67°R |
| 26°C | 538.47°R |
| 27°C | 540.27°R |
| 28°C | 542.07°R |
| 29°C | 543.87°R |
| 30°C | 545.67°R |
| 31°C | 547.47°R |
| 32°C | 549.27°R |
| 33°C | 551.07°R |
| 34°C | 552.87°R |
| 35°C | 554.67°R |
| 36°C | 556.47°R |
| 36.5°C | 557.37°R |
| 37°C | 558.27°R |
| 37.5°C | 559.17°R |
| 38°C | 560.07°R |
| 38.5°C | 560.97°R |
| 39°C | 561.87°R |
| 39.5°C | 562.77°R |
| 40°C | 563.67°R |
| 40.5°C | 564.57°R |
| 41°C | 565.47°R |
| 42°C | 567.27°R |
| 43°C | 569.07°R |
| 44°C | 570.87°R |
| 45°C | 572.67°R |
| 46°C | 574.47°R |
| 47°C | 576.27°R |
| 48°C | 578.07°R |
| 49°C | 579.87°R |
| 50°C | 581.67°R |
| 55°C | 590.67°R |
| 60°C | 599.67°R |
| 65°C | 608.67°R |
| 70°C | 617.67°R |
| 75°C | 626.67°R |
| 80°C | 635.67°R |
| 85°C | 644.67°R |
| 90°C | 653.67°R |
| 95°C | 662.67°R |
| 100°C | 671.67°R |
| 110°C | 689.67°R |
| 120°C | 707.67°R |
| 130°C | 725.67°R |
| 140°C | 743.67°R |
| 150°C | 761.67°R |
| 160°C | 779.67°R |
| 170°C | 797.67°R |
| 180°C | 815.67°R |
| 190°C | 833.67°R |
| 200°C | 851.67°R |
| 210°C | 869.67°R |
| 220°C | 887.67°R |
| 230°C | 905.67°R |
| 240°C | 923.67°R |
| 250°C | 941.67°R |
| 260°C | 959.67°R |
| 270°C | 977.67°R |
| 280°C | 995.67°R |
| 290°C | 1013.67°R |
| 300°C | 1031.67°R |
| 350°C | 1121.67°R |
| 400°C | 1211.67°R |
| 450°C | 1301.67°R |
| 500°C | 1391.67°R |
| 550°C | 1481.67°R |
| 600°C | 1571.67°R |
| 650°C | 1661.67°R |
| 700°C | 1751.67°R |
| 750°C | 1841.67°R |
| 800°C | 1931.67°R |
| 850°C | 2021.67°R |
| 900°C | 2111.67°R |
| 950°C | 2201.67°R |
| 1000°C | 2291.67°R |
Calculation method for Celsius and Rankine
°R = (°C + 273.15) × 9/5
Rankine is the absolute temperature scale built on Fahrenheit-sized degrees: 0 °R sits at absolute zero, just like Kelvin, but each Rankine degree equals one Fahrenheit degree instead of one Celsius degree. To convert Celsius to Rankine, first shift to an absolute scale by adding 273.15, then multiply by 9/5 to switch to Fahrenheit-sized units.
Rankine survives mainly in US thermodynamics and aerospace engineering, where formulas need absolute temperatures but teams work in Fahrenheit conventions.
Need the calculation the other way around? Use the Rankine to Celsius converter, or compare all scales in the temperature conversion calculator.
Worked examples with real reference points
- Convert 25°C: (25 + 273.15) = 298.15; 298.15 × 9/5 = 536.67 °R
- Convert 0°C: (0 + 273.15) × 9/5 = 491.67 °R (water freezes)
- Convert 100°C: (100 + 273.15) × 9/5 = 671.67 °R (water boils)