Convertify

EXACT.RESULT

25 Rankines to Kelvins

25 r converted to k. Full working, formula and reference table below.

Category
temperature
Input
25 r
Output
13.888889
// INPUT01

Rankine

// OUTPUT02
13.888889

Kelvin

Factor0.555555556
Inverse1.8
Formulak = ƒ(r)
Updated2026-05-25

OTHER AMOUNTS

r → k
r → k2 r5 r10 r25 r50 r100 r500 r1000 r

Rankine to Kelvin Conversion Table

Common rankine to kelvin values for quick reference.

RankineKelvin
10.555555556
21.111111
52.777778
105.555556
2513.888889
5027.777778
10055.555556
250138.888889
500277.777778
1000555.555556

When you'd actually use this

Where you'd actually use rankine → kelvin in everyday Australian life.

  • Cooking from overseas recipes

    American and British cookbooks rarely use the same temperature units as Australian ones.

  • Online shopping

    Product specs from US stores often list temperature in imperial units.

  • Travel and fitness apps

    Apps that default to a different region may show temperature you need to translate.

Conversion Formula

Convert Rankine to Kelvin using the appropriate temperature formula.

Formula

Convert r to k

Inverse (converting back)

Convert k to r

How to Convert Rankine to Kelvin

Convert rankine to kelvin in three steps. The relationship is a single scale shift, so once you know the factor you can do it in your head for round numbers.

  1. Start with your value

    Take the number of rankine you want to convert.

  2. Apply the formula

    Use the Rankine → Kelvin formula shown above to shift the value.

  3. Read your answer

    The result is the equivalent in kelvin.

Worked example

10 rankine = 5.555556 kelvin

Plugging 10 Rankine into the formula gives 5.555556 Kelvin.

What is a Rankine?

Degrees Rankine is an absolute scale using Fahrenheit-sized degrees, with 0 °R at absolute zero (−459.67 °F).

Origin

Proposed by Scottish engineer William Rankine in 1859.

Notable uses

  • US engineering thermodynamics
  • Aerospace calculations

What is a Kelvin?

Kelvin is the SI base unit of temperature, an absolute scale starting at absolute zero (0 K = −273.15 °C) with no degrees symbol.

Origin

Proposed by William Thomson (Lord Kelvin) in 1848; redefined in 2019 using the Boltzmann constant.

Notable uses

  • Scientific measurement
  • Lighting colour temperature
  • Astronomy

Frequently Asked Questions