How to Convert Celsius to Rankine (°C to °R)

Updated 5 Oct 2026 in Unit Converters

Temperature conversions help with American oven recipes in Fahrenheit, weather apps set to the wrong unit, and science homework that uses kelvin. This guide shows how to convert celsius into rankine by hand, with examples and a quick-reference table.

The conversion

Temperature scales have different zero points, so you cannot use a single multiplier. Convert through kelvin: °C converted through kelvin: ((°C+273.15)*9/5).

°C converted through kelvin: ((°C+273.15)*9/5)

Worked examples

Celsius to Rankine table

CelsiusRankine
-40 °C419.67 °R
-10 °C473.67 °R
0 °C491.67 °R
10 °C509.67 °R
20 °C527.67 °R
25 °C536.67 °R
30 °C545.67 °R
37 °C558.27 °R
50 °C581.67 °R
100 °C671.67 °R
200 °C851.67 °R

Common questions

Is °C to °R exact?

The factors used here are the internationally defined values where they exist; results are rounded for display only.

How do I convert back?

Use the Rankine to Celsius converter.

Mistakes to avoid

Dropping the units

A bare number without a unit is easy to misread later. Always write the unit with the result.

Mixing similar-sounding units

US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.

Forgetting squared and cubed units

Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.

Background

Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.

Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.

A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.

For any value, use the Celsius to Rankine Converter or browse all temperature converters.

Run your own numbers: Celsius to Rankine Converter

Related guides