Celsius to Rankine (°C → °R)
Formula
°R = (°C + 273.15) × 9/5Step-by-step
°R = (0 + 273.15) × 9/5°R = 273.15 × 9/5°R = 491.66999999999996Conversion Table
| °C | °R |
|---|---|
| 0 | 491.67 |
| 1.0000 | 493.47 |
| 2.0000 | 495.27 |
| 3.0000 | 497.07 |
| 4.0000 | 498.87 |
| 5.0000 | 500.67 |
| 6.0000 | 502.47 |
| 7.0000 | 504.27 |
| 8.0000 | 506.07 |
| 9.0000 | 507.87 |
| 10.000 | 509.67 |
| 11.000 | 511.47 |
| 12.000 | 513.27 |
| 13.000 | 515.07 |
| 14.000 | 516.87 |
| 15.000 | 518.67 |
| 16.000 | 520.47 |
| 17.000 | 522.27 |
| 18.000 | 524.07 |
| 19.000 | 525.87 |
| °C | °R |
|---|---|
| 20.000 | 527.67 |
| 21.000 | 529.47 |
| 22.000 | 531.27 |
| 23.000 | 533.07 |
| 24.000 | 534.87 |
| 25.000 | 536.67 |
| 26.000 | 538.47 |
| 27.000 | 540.27 |
| 28.000 | 542.07 |
| 29.000 | 543.87 |
| 30.000 | 545.67 |
| 31.000 | 547.47 |
| 32.000 | 549.27 |
| 33.000 | 551.07 |
| 34.000 | 552.87 |
| 35.000 | 554.67 |
| 36.000 | 556.47 |
| 37.000 | 558.27 |
| 38.000 | 560.07 |
| 39.000 | 561.87 |
| °C | °R |
|---|---|
| 40.000 | 563.67 |
| 41.000 | 565.47 |
| 42.000 | 567.27 |
| 43.000 | 569.07 |
| 44.000 | 570.87 |
| 45.000 | 572.67 |
| 46.000 | 574.47 |
| 47.000 | 576.27 |
| 48.000 | 578.07 |
| 49.000 | 579.87 |
| 50.000 | 581.67 |
| 51.000 | 583.47 |
| 52.000 | 585.27 |
| 53.000 | 587.07 |
| 54.000 | 588.87 |
| 55.000 | 590.67 |
| 56.000 | 592.47 |
| 57.000 | 594.27 |
| 58.000 | 596.07 |
| 59.000 | 597.87 |
| °C | °R |
|---|---|
| 60.000 | 599.67 |
| 61.000 | 601.47 |
| 62.000 | 603.27 |
| 63.000 | 605.07 |
| 64.000 | 606.87 |
| 65.000 | 608.67 |
| 66.000 | 610.47 |
| 67.000 | 612.27 |
| 68.000 | 614.07 |
| 69.000 | 615.87 |
| 70.000 | 617.67 |
| 71.000 | 619.47 |
| 72.000 | 621.27 |
| 73.000 | 623.07 |
| 74.000 | 624.87 |
| 75.000 | 626.67 |
| 76.000 | 628.47 |
| 77.000 | 630.27 |
| 78.000 | 632.07 |
| 79.000 | 633.87 |
Celsius to Rankine Conversion
Converting Celsius (°C) to Rankine (°R) is a common temperature conversion. 1 °C equals 493.47 °R. For example, 100 °C is equal to 671.67 °R.
Quick Mental Math: Celsius to Rankine
Multiply by 1.8 (or 9/5) and add 32 to convert Celsius to Fahrenheit.
Why is converting Celsius to Rankine tricky?
The conversion factor requires careful attention to avoid reversing the operation.
Reference Temperatures
Absolute zero: -273.15 °C = 0 °R. Water freezing point: 0 °C = 491.67 °R. Room temperature: 20 °C = 527.67 °R. Body temperature: 37 °C = 558.27 °R. Water boiling point: 100 °C = 671.67 °R.
What is Celsius?
Celsius (°C) is a unit of temperature. Celsius is a temperature scale where 0 °C is the freezing point and 100 °C is the boiling point of water at standard atmospheric pressure. It is defined by the International System of Units (SI) and related to the Kelvin scale by the formula °C = K − 273.15 [cgpm-resolutions]. The Celsius scale was developed by Anders Celsius in 1742. It became internationally accepted and officially incorporated into the SI temperature scales by the CGPM in 1948 for scientific and everyday temperature measurement [cgpm-resolutions]. Celsius is the standard temperature unit for most countries worldwide, including Canada, Europe, and Australia. It is used in weather forecasts, scientific research, and industrial processes as endorsed by ISO and BIPM [bipm-si-brochure].
What is Rankine?
Rankine (°R) is a unit of temperature. The Rankine scale is an absolute temperature scale used in engineering, defined as degrees Fahrenheit offset from absolute zero. One degree Rankine equals exactly 5/9 kelvin, with 0 °R at absolute zero (-459.67 °F). It is used primarily in thermodynamics and aerospace engineering in the United States [nist-sp-811]. The Rankine scale was proposed by William John Macquorn Rankine in 1859 to align the Fahrenheit scale with absolute zero. It was adopted to facilitate thermodynamic calculations using Fahrenheit-based units, especially in steam engine and aerospace contexts [nist-sp-811]. Rankine is mainly used in the US aerospace and engineering industries where Fahrenheit is standard. It is recognized by the NIST and used alongside Kelvin for absolute temperature measurements. The scale is uncommon outside specialized fields and the US [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: celcius, celsious, celcius, celsius degree, rankin, rankinee, rankinne, rankin temperature. All of these refer to the Celsius to Rankine conversion.