Convert Kelvin (K) (kelvin) to Rankine (°R) (rankine)

Category: Temperature

18 rankine

10 kelvin = 18 rankine

High-precision rounding: 6 decimals


How to convert kelvin (k) to rankine (°r)

We convert by pivoting through the SI base unit for Temperature and applying exact factors where applicable.

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Quick conversion table

Handy values for Kelvin (K) → Rankine (°R). Click a value to open that exact result.

Kelvin (K) Rankine (°R)
10 18
0.5 0.9
2.5 4.5

Conversion formula

Use the exact formula:

°R = K × 9/5

Temperature conversions use exact affine formulas (ratio + offset).

Common mistakes

  • Using only a ratio (×1.8 or ×0.555…) without adding/subtracting the offset (±32, +273.15).
  • Rounding too early; convert first, then round to the desired precision.

Unit facts

  • Kelvin (K): Kelvin (K) is the absolute thermodynamic scale; SI base unit for temperature.
  • Rankine (°R): Rankine (°R) is an absolute scale using Fahrenheit-sized degrees; used in some engineering contexts.

About Temperature

Temperature scales combine ratios and offsets. Kelvin is absolute (no negative values), Celsius offsets Kelvin by 273.15, and Fahrenheit uses a different step and zero point. Because offsets exist, temperature conversions require both a factor and an addition/subtraction.

About Kelvin (K)

Kelvin (K)

Absolute SI scale starting at 0 K with no negative values. Used for thermodynamics, cryogenics, and color temperature (K).

History: Defined via the Boltzmann constant since 2019, linking temperature directly to energy at the particle level.

About Rankine (°R)

Rankine (°R)

Absolute scale using Fahrenheit-sized degrees. Useful in aerospace and thermodynamic calculations within imperial frameworks.

History: Introduced by William Rankine in the 19th century as an analogue of Kelvin for Fahrenheit users.

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