The Rankine and Delisle scales are both temperature scales, though less common in everyday use. The Rankine scale is an absolute scale, meaning it starts at absolute zero (the point where all molecular motion ceases). The Delisle scale, on the other hand, is a descending scale where the boiling point of water is 0 degrees.
This guide will provide a comprehensive understanding of the Rankine to Delisle conversion process, including the underlying formula and a helpful online calculator.
The Rankine scale is an absolute thermodynamic temperature scale named after Scottish engineer William John Macquorn Rankine. It uses the same degree size as the Fahrenheit scale but has its zero point at absolute zero (0 °R = -459.67 °F = 0 K).
The Delisle scale, invented by French astronomer Joseph-Nicolas Delisle, is a descending scale. This means the boiling point of water is 0°D, and the freezing point of water is 150°D.
The formula to convert Rankine to Delisle is a multi-step process:
Rankine | Delisle | Rankine | Delisle | Rankine | Delisle | Rankine | Delisle |
---|---|---|---|---|---|---|---|
1°R | 558.89°De | 21°R | 542.23°De | 41°R | 525.56°De | 61°R | 508.89°De |
2°R | 558.06°De | 22°R | 541.39°De | 42°R | 524.73°De | 62°R | 508.06De |
3°R | 557.23°De | 23°R | 540.56°De | 43°R | 523.89°De | 63°R | 507.22°De |
4°R | 556.39°De | 24°R | 539.73°De | 44°R | 523.06°De | 64°R | 506.39°De |
5°R | 555.56°De | 25°R | 538.89°De | 45°R | 522.23°De | 65°R | 505.56°De |
6°R | 554.73°De | 26°R | 538.06°De | 46°R | 521.39°De | 66°R | 504.72°De |
7°R | 553.89°De | 27R | 537.23°De | 47°R | 520.56°De | 67°R | 503.89°De |
8°R | 553.06°De | 28°R | 536.39°De | 48°R | 519.73°De | 68°R | 503.06°De |
9°R | 552.23°De | 29°R | 535.56°De | 49°R | 518.89°De | 69°R | 502.22°De |
10°R | 551.39°De | 30°R | 534.73°De | 50°R | 518.06°De | 70°R | 501.39°De |
11°R | 550.56°De | 31°R | 533.89°De | 51°R | 517.23°De | 71°R | 500.56°De |
12°R | 549.73°De | 32°R | 533.06°De | 52°R | 516.39°De | 72°R | 499.72°De |
13°R | 548.89°De | 33°R | 532.23°De | 53°R | 515.56°De | 73°R | 498.89°De |
14°R | 548.06°De | 34°R | 531.39°De | 54°R | 514.73°De | 74°R | 498.06°De |
15°R | 547.23°De | 35°R | 530.56°De | 55°R | 513.89°De | 75R | 497.22°De |
16°R | 546.39°De | 36°R | 529.73°De | 56°R | 513.06°De | 76°R | 496.39°De |
17°R | 545.56°De | 37R | 528.89°De | 57°R | 512.23°De | 77°R | 495.56°De |
18°R | 544.73°De | 38°R | 528.06°De | 58°R | 511.39°De | 78°R | 494.72°De |
19°R | 543.89°De | 39°R | 527.23°De | 59°R | 510.56°De | 79°R | 493.89°De |
20°R | 543.06°De | 40°R | 526.39°De | 60°R | 509.72°De | 80°R | 493.06°De |