13 Rankine to Celsius
Quick answer
13 Rankine (°R) equals
-265.927778 °C
To convert 13 Rankines to degrees Celsius, multiply by -272.5944444444. Therefore, 13 Rankine (°R) equals -265.927778 Celsius (°C).
Formula: °C = (°R - 491.67) × 5/9. Calculation: -265.927778 °C. Reverse: °R = (°C + 273.15) × 9/5.
Convert Rankine (°R) to Celsius (°C) online with our free unit converter. Calculated using formula: °C = (°R - 491.67) × 5/9. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Rankine to Celsius
- Step 1 — start with the formula. °C = (°R - 491.67) × 5/9
- Step 2 — substitute your figure. Apply the formula to 13 °R.
- Step 3 — read the result. 13 °R = -265.927778 °C
- Step 4 — check it in reverse. °R = (°C + 273.15) × 9/5 returns 13 °R, which matches the figure you started with.
Temperature Converter
5 units available
13 °R = -265.927778 °C
Formula:
°C = (°R - 491.67) × 5/9With your value: 13 °R = -265.92777778 °C
Other Rankine to Celsius conversions
Rankine to Celsius Conversion Table
| Rankine (°R) | Celsius (°C) |
|---|---|
| 0.5 | -272.872222 |
| 1 | -272.594444 |
| 2 | -272.038889 |
| 5 | -270.372222 |
| 10 | -267.594444 |
| 15 | -264.816667 |
| 20 | -262.038889 |
| 25 | -259.261111 |
| 50 | -245.372222 |
| 100 | -217.594444 |
| 250 | -134.261111 |
| 500 | 4.627778 |
| 1000 | 282.405556 |
Celsius to Rankine Conversion Table
| Celsius (°C) | Rankine (°R) |
|---|---|
| 0.5 | 492.57 |
| 1 | 493.47 |
| 2 | 495.27 |
| 5 | 500.67 |
| 10 | 509.67 |
| 15 | 518.67 |
| 20 | 527.67 |
| 25 | 536.67 |
| 50 | 581.67 |
| 100 | 671.67 |
| 250 | 941.67 |
| 500 | 1,391.67 |
| 1000 | 2,291.67 |
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.
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
Celsius (°C)
Temperature
t/°C = T/K − 273.15. The degree Celsius has exactly the same magnitude as the kelvin.
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 Rankine to Celsius
This conversion uses an offset formula, so it cannot be described by a single multiplication factor.
Formula: °C = (°R - 491.67) × 5/9
Reverse: °R = (°C + 273.15) × 9/5
Step-by-Step Example
- Start with your value in Rankine. For example: 5 °R
- Apply °C = (°R - 491.67) × 5/9
- The result is: -270.372222 °C
Rankine and Celsius Relationship
This calculation facilitates standardized conversion between recognized units of temperature. Unlike simple multiplicative factors, this conversion follows an affine calculation model: °C = (°R - 491.67) × 5/9. Understanding the relationship between Rankine and Celsius is essential for accurate calculations in physics, engineering, commerce, and daily applications.
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.
About Celsius
The Celsius scale sets 0°C as the freezing point and 100°C as the boiling point of water at standard pressure. It is used by most countries worldwide.
Fun Fact: Anders Celsius originally proposed a scale where 100° was freezing and 0° was boiling—it was later reversed!
Common uses of Celsius: weather, cooking, science.
Frequently Asked Questions
- What is 13 Rankine in Celsius?
- 13 Rankine equals -265.927778 Celsius.
- How many degrees Celsius are in 1 Rankine?
- There are exactly -272.5944444444 degrees Celsius in 1 Rankine.
- What is the formula to convert Rankine to Celsius?
- The formula to convert Rankine to Celsius is: °C = (°R - 491.67) × 5/9. For example, to convert 10 Rankines to degrees Celsius, you would apply the formula to 10.
- 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 is a Celsius?
- The Celsius scale sets 0°C as the freezing point and 100°C as the boiling point of water at standard pressure. It is used by most countries worldwide.
- What are the common uses of Rankine?
- The Rankine is commonly used in US thermodynamics, combustion engineering.
Related Temperature Conversions
Cite this page
UnitConvertLab. (2026). 13 Rankine to Celsius. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/13-rankine-to-celsius