The kelvin is the SI base unit of thermodynamic temperature, defined by fixing the Boltzmann constant at exactly 1.380649 × 10⁻²³ J/K. Zero kelvin (0 K) is absolute zero.

The degree Rankine is an absolute temperature scale using the Fahrenheit degree size, where 0 °R equals absolute zero (−459.67 °F).

Where is Kelvin used in everyday life?

Color temperature of lights (e.g., 2700 K warm white, 6500 K daylight), cryogenics, and engineering thermodynamics.

What are common mistakes when converting Kelvin?

Writing '°K' instead of 'K' — kelvin never uses a degree sign. Also, confusing 0 K with 0 °C.

UntangleTools

FromK

To°R

Kelvin to Rankine

Converter

Unit Converter

Instant · Precise · Universal

THEME

Deep Ocean

Teal Nebula

Midnight Aurora

Forest Mist

Wine Ember

Emerald Depth

Void Steel

Tropical Burst

From

Copy Value

—

6 units available

13 categories total

All conversions

"1" Kelvin

Every target unit at a glance

Source

Kelvin (K)

Tip: Click any answer value to copy it.

Celsius(°C)Copy Answer
Fahrenheit(°F)Copy Answer
Rankine(°R)Copy Answer
Réaumur(°Ré)Copy Answer
Triple Point of Water(Tₜ)Copy Answer

5 conversions shown

How to Convert Kelvin to Rankine

To Celsius: °C = K − 273.15. To Fahrenheit: °F = (K − 273.15) × 9/5 + 32. To Rankine: °R = K × 9/5.

K = °C + 273.15. The kelvin scale starts at absolute zero (0 K = −273.15 °C). Same degree size as Celsius.

For example, 1 Kelvin (K) = 1.8 Rankine (°R).

Kelvin to Rankine — Common Values

Quick reference conversion table showing common Kelvin to Rankine values for temperature measurement
Kelvin (K)	Rankine (°R)
0.001	0.0018
0.01	0.018
0.1	0.18
0.5	0.9
1	1.8
2	3.6
5	9
10	18
15	27
25	45
50	90
75	135
100	180
250	450
500	900
750	1350
1000	1800

Other Temperature Conversions

Celsius to Fahrenheit

Fahrenheit to Celsius

Convert Kelvin to All Temperature Units

Kelvin to Triple Point of Water