Unit Converters

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thermostat

Temp Conversion

From

Amount to Convert

Result

-272.59444444°C

1 Rankine = -272.59444444 Celsius

infoAbout Temp Tool

Temperature scale conversions between Celsius, Fahrenheit, Kelvin, and Rankine with exact mathematical formulas.

Quick References

1 Celsius to Fahrenheit33.8
1 Fahrenheit to Kelvin255.92777778
1 Celsius to Kelvin274.15

table_chartCommon Conversions

Celsius-272.59444444 °C

Fahrenheit-458.67 °F

Kelvin0.55555556 K

Rankine to Celsius Conversion Table

Rankine (°R)	Celsius (°C)
1 °R	-272.59444444 °C
2 °R	-272.03888889 °C
5 °R	-270.37222222 °C
10 °R	-267.59444444 °C
25 °R	-259.26111111 °C
50 °R	-245.37222222 °C
100 °R	-217.59444444 °C
250 °R	-134.26111111 °C
500 °R	4.62777778 °C
1000 °R	282.40555556 °C

How to Convert Rankine to Celsius

Formula

°C = (°R × 5/9) − 273.15

Worked Example

Example: 491.67 °R = (491.67 × 5/9) − 273.15 = 0 °C

Multiply by 5/9 and subtract 273.15 to get Celsius.

About These Units

°R

Rankine

Rankine is an absolute temperature scale using Fahrenheit-sized degrees but starting at absolute zero. 0°R equals absolute zero (-459.67°F). It is primarily used in certain engineering fields in the United States, particularly in thermodynamics.

History

The Rankine scale was proposed by Scottish engineer William John Macquorn Rankine in 1859. It serves the same purpose as the Kelvin scale but uses Fahrenheit increments. The freezing point of water is 491.67°R and the boiling point is 671.67°R.

°C

Celsius

Celsius is a temperature scale where 0°C is the freezing point of water and 100°C is the boiling point of water at standard atmospheric pressure. It is used by most countries worldwide for everyday temperature measurement and in scientific contexts.

History

The Celsius scale was proposed by Swedish astronomer Anders Celsius in 1742. Originally, his scale was inverted (0° was boiling, 100° was freezing), but it was reversed after his death. The scale was renamed from 'centigrade' to 'Celsius' in 1948 by the General Conference on Weights and Measures.

Frequently Asked Questions

Related Temp Conversions

arrow_forwardRankine to Fahrenheit arrow_forwardRankine to Kelvin arrow_forwardFahrenheit to Celsius arrow_forwardKelvin to Celsius

Why use NexaConvert for Units?

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Scientific Accuracy

Calculated using the latest NIST standards for physical constants and unit ratios.

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Instant Execution

No reload required. Get your results in real-time as you type or change units.

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Cross-Device

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How these conversions work

Each category converts first through a base unit, then into the destination unit. That keeps the math consistent across metric and imperial systems and makes it easier to explain how results are generated.

When to double-check

Use these tools for planning, study, and everyday reference. For regulated, medical, engineering, or procurement work, confirm requirements against the official standard or specification you are working from.

Rankine (°R)

Celsius (°C)

1 °R

-272.59444444 °C

2 °R

-272.03888889 °C

5 °R

-270.37222222 °C

10 °R

-267.59444444 °C

25 °R

-259.26111111 °C

50 °R

-245.37222222 °C

100 °R

-217.59444444 °C

250 °R

-134.26111111 °C

500 °R

4.62777778 °C

1000 °R

282.40555556 °C

About These Units

°R

Rankine

History

°C

Celsius

History

Why use NexaConvert for Units?

verified

Scientific Accuracy

Calculated using the latest NIST standards for physical constants and unit ratios.

bolt

Instant Execution

No reload required. Get your results in real-time as you type or change units.

devices

Cross-Device

A responsive precision tool that fits in your pocket or dominates your desktop.