Convert Per Degree Fahrenheit to Per Kelvin
Live bidirectional calculator for Per Degrees Fahrenheit (1/°F) and Per Kelvins (1/K) with verified formula and conversion charts.
Thermal Expansion5 units
How the Calculation Works (Linear Scaling)
Since 1 Per Degree Fahrenheit = 1.8 Per Kelvins, multiply the value in Per Degrees Fahrenheit by 1.8.
Per Degree Fahrenheit to Per Kelvin Conversion Table
Precomputed values for quick reference and printing.
| Per Degree Fahrenheit | Per Kelvin |
|---|---|
| 1 1/°F | 1.8 1/K |
| 2 1/°F | 3.6 1/K |
| 3 1/°F | 5.4 1/K |
| 4 1/°F | 7.2 1/K |
| 5 1/°F | 9 1/K |
| 6 1/°F | 10.8 1/K |
| 7 1/°F | 12.6 1/K |
| 8 1/°F | 14.4 1/K |
| 9 1/°F | 16.2 1/K |
| 10 1/°F | 18 1/K |
| 15 1/°F | 27 1/K |
| 20 1/°F | 36 1/K |
| 25 1/°F | 45 1/K |
| 30 1/°F | 54 1/K |
| 40 1/°F | 72 1/K |
| 50 1/°F | 90 1/K |
| 75 1/°F | 135 1/K |
| 100 1/°F | 180 1/K |
| Per Kelvin | Per Degree Fahrenheit |
|---|---|
| 1 1/K | 0.5556 1/°F |
| 2 1/K | 1.1111 1/°F |
| 3 1/K | 1.6667 1/°F |
| 4 1/K | 2.2222 1/°F |
| 5 1/K | 2.7778 1/°F |
| 6 1/K | 3.3333 1/°F |
| 7 1/K | 3.8889 1/°F |
| 8 1/K | 4.4444 1/°F |
| 9 1/K | 5 1/°F |
| 10 1/K | 5.5556 1/°F |
| 15 1/K | 8.3333 1/°F |
| 20 1/K | 11.1111 1/°F |
| 25 1/K | 13.8889 1/°F |
| 30 1/K | 16.6667 1/°F |
| 40 1/K | 22.2222 1/°F |
| 50 1/K | 27.7778 1/°F |
| 75 1/K | 41.6667 1/°F |
| 100 1/K | 55.5556 1/°F |
📌 Standard Benchmark Reference Values
Exact reciprocal temperature interval factor: 1 / (5/9 K) = 9/5 K⁻¹ = 1.8 K⁻¹.
Exact RatioAbout Per Degree Fahrenheit (1/°F)
Thermal expansion coefficient per degree Fahrenheit. Since 1 °F interval = 5/9 K, 1/(1 °F) = 9/5 K⁻¹ = 1.8 K⁻¹.
History: Standard measure in American structural engineering and ASTM material specifications.
Common Uses: US building codes, ASTM material test standards, piping thermal expansion analysis.
About Per Kelvin (1/K)
The SI unit for linear and volumetric thermal expansion coefficients, defined as fractional dimension change per kelvin temperature change.
History: Adopted in SI thermodynamics to express material strain response to temperature differentials.
Common Uses: Materials science, structural engineering, precision optical mounting, thermal stress analysis.
❓ Frequently Asked Questions
How many Per Kelvins are in 1 Per Degree Fahrenheit?
There are exactly 1.8 Per Kelvins in 1 Per Degree Fahrenheit (1 1/°F = 1.8 1/K).
What is the formula to convert Per Degree Fahrenheit to Per Kelvin?
The formula is: Per Kelvin = Per Degree Fahrenheit × 1.8. Since 1 Per Degree Fahrenheit = 1.8 Per Kelvins, multiply the value in Per Degrees Fahrenheit by 1.8.
How do I convert 1 1/°F to 1/K manually?
To convert 1 1/°F to 1/K: apply the formula Per Kelvin = Per Degree Fahrenheit × 1.8. Substituting gives: 1 × 1.8 = 1.8 1/K.