Use this free, accurate kelvin [k] to rankine scale [°ra] calculator to convert between Kelvin [K] (K) and Rankine Scale [°Ra] (°Ra). Includes live instant results, complete mathematical formulas, conversion tables, and step-by-step examples.
1.8 Rankine Scale
1 K is equal to 1.8 °Ra.
1 Kelvin [K] → -272.15 °C → 1.8 Rankine Scale [°Ra]
temperature Converters
To convert from Kelvin [K] to Rankine Scale [°Ra], multiply the value in Kelvin [K] by 1.8 (or use the formula: °Ra = K × 1.8).
Take your initial measurement in Kelvin [K] (K). For instance, let's convert 1 K.
Multiply by the standard conversion factor (1.8).
The final converted measurement equals 1.8 Rankine Scale [°Ra] (°Ra).
Compare standard reference values and common conversion benchmarks.
| Kelvin [K] (K) | Rankine Scale [°Ra] (°Ra) | Action |
|---|---|---|
| -40 K | -72 °Ra | |
| -20 K | -36 °Ra | |
| -10 K | -18 °Ra | |
| 0 K | 0 °Ra | |
| 10 K | 18 °Ra | |
| 20 K | 36 °Ra | |
| 25 K | 45 °Ra | |
| 30 K | 54 °Ra | |
| 37 K | 66.6 °Ra | |
| 50 K | 90 °Ra | |
| 75 K | 135 °Ra | |
| 100 K | 180 °Ra | |
| 180 K | 324 °Ra | |
| 212 K | 381.6 °Ra |
Official standards, measurement systems, and real-world everyday applications.
Kelvin is an absolute temperature scale used in science and engineering.
Common Practical Uses
Rankine is an absolute temperature scale that uses Fahrenheit degrees, where zero is absolute zero.
Common Practical Uses
Calculate from Rankine Scale [°Ra] (°Ra) back to Kelvin [K] (K).
Frequently used unit conversions in this category:
Explore other measurement and calculation tools:
There are 1.8 degrees Rankine in 1 kelvins. Exactly 1 K is equal to 1.8 °Ra.
The conversion formula is: Rankine Scale [°Ra] = 1 Kelvin [K] → -272.15 °C → 1.8 Rankine Scale [°Ra]. Applying this to 1 K gives: 1 × 1.8 = 1.8 °Ra.
To convert in reverse from degrees Rankine to kelvins, multiply by the inverse factor: 1 °Ra = 0.555556 K. Alternatively, divide your Rankine Scale [°Ra] amount by 1.8.
To calculate in your head, round the conversion multiplier (1.8) to the nearest easy whole or decimal number.
Kelvin [K] (K) belongs to the SI system, commonly used in Scientific research, Thermodynamics. In comparison, Rankine Scale [°Ra] (°Ra) is part of the Imperial and US customary system, frequently applied in Thermodynamics, Aerospace engineering, Thermal engineering.
Key milestones include: 1 K = 1.8 °Ra, 5 K = 9 °Ra, 10 K = 18 °Ra, 50 K = 90 °Ra, and 100 K = 180 °Ra.