---
title: "Degrees Celsius to Degrees Rankine — °C to °R converter"
description: "1 degree Celsius = 493.47 degrees Rankine. Conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/celsius-to-rankine/
site: "At One Place"
---

# Degrees Celsius to degrees Rankine

**1 degree Celsius in degrees Rankine: 1 °C = 493.47 °R**

°R = °C × 9/5 + 491.67

To convert degrees Celsius to degrees Rankine, use °R = °C × 9/5 + 491.67. The table below gives the values people look up most often, and the converter works for any number.

## Degrees Celsius to degrees Rankine table

*Common degree Celsius values converted to degrees Rankine.*

| Degrees Celsius | Degrees Rankine |
| --- | --- |
| -40 °C | 419.67 |
| -20 °C | 455.67 |
| -10 °C | 473.67 |
| 0 °C | 491.67 |
| 10 °C | 509.67 |
| 20 °C | 527.67 |
| 25 °C | 536.67 |
| 30 °C | 545.67 |
| 37 °C | 558.27 |
| 50 °C | 581.67 |
| 75 °C | 626.67 |
| 100 °C | 671.67 |
| 150 °C | 761.67 |
| 200 °C | 851.67 |

## How the conversion works

The relationship is °R = °C × 9/5 + 491.67. Both units measure temperature, so the conversion is a fixed formula that never changes. Temperature scales are the one common case where converting is not just multiplication — Celsius and Fahrenheit each put their zero in a different place, so an offset is applied as well as a scale factor.

## Common questions

### How many degrees Rankine are in one degree Celsius?

One degree Celsius equals 493.47 degrees Rankine. °R = °C × 9/5 + 491.67.

### How do you convert degrees Celsius to degrees Rankine?

Use °R = °C × 9/5 + 491.67. So 10 °C is 509.67 °R.

### How many degrees Celsius are in one degree Rankine?

One degree Rankine equals -272.5944 degrees Celsius, which is the reverse of the conversion above.

## Related pages

- [Degrees Rankine to Degrees Celsius](https://atoneplace.net/convert/rankine-to-celsius/)
- [Degrees Celsius to Kelvin](https://atoneplace.net/convert/celsius-to-kelvin/)
- [Degrees Celsius to Degrees Fahrenheit](https://atoneplace.net/convert/celsius-to-fahrenheit/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)