Convert Percent per degree Fahrenheit to Per kelvin
Convert Percent per degree Fahrenheit (%/°F) to Per kelvin (1/K) instantly and accurately.
Conversion Formula
1/K = %/°F × 0.018
About Percent per degree Fahrenheit
The %/°F equals 9/5 × 10⁻² /K ≈ 0.018 /K, the Fahrenheit percent-expansion unit used in US polymer and rubber industry specifications. PTFE: ≈0.0075 %/°F; HDPE: ≈0.0083 %/°F; silicone rubber: ≈0.056 %/°F. 1 %/°F = 9/5 × 10⁻² /K ≈1.8 %/K.
About Per kelvin
The per kelvin (1/K = K⁻¹) is the SI unit for linear thermal expansion coefficient (α = (1/L) dL/dT). Used in NIST databases, FEA material cards, and thermodynamics textbooks. Liquid mercury: ≈6.1 × 10⁻⁵ /K; aluminium: ≈2.3 × 10⁻⁵ /K; fused silica: ≈5.5 × 10⁻⁷ /K. 1 /K = 10⁶ ppm/K = 1/°C.
Quick Reference Table
| Percent per degree Fahrenheit (%/°F) | Per kelvin (1/K) |
|---|---|
| 1 %/°F | 0.018 1/K |
| 2 %/°F | 0.036 1/K |
| 5 %/°F | 0.09 1/K |
| 10 %/°F | 0.18 1/K |
| 25 %/°F | 0.45 1/K |
| 50 %/°F | 0.9 1/K |
| 100 %/°F | 1.8 1/K |