Convert Percent per degree Fahrenheit to Per degree Celsius
Convert Percent per degree Fahrenheit (%/°F) to Per degree Celsius (1/°C) instantly and accurately.
Conversion Formula
1/°C = %/°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 degree Celsius
The per degree Celsius (1/°C = °C⁻¹) equals exactly 1/K since temperature intervals 1 °C = 1 K (exact). Common in European and ISO standards, chemistry textbooks, and physics literature as an alternative notation for the SI unit 1/K. A material with α = 12 × 10⁻⁶ /K is identically expressed as 12 × 10⁻⁶ /°C. 1 /°C = 1 /K = 10⁶ ppm/K.
Quick Reference Table
| Percent per degree Fahrenheit (%/°F) | Per degree Celsius (1/°C) |
|---|---|
| 1 %/°F | 0.018 1/°C |
| 2 %/°F | 0.036 1/°C |
| 5 %/°F | 0.09 1/°C |
| 10 %/°F | 0.18 1/°C |
| 25 %/°F | 0.45 1/°C |
| 50 %/°F | 0.9 1/°C |
| 100 %/°F | 1.8 1/°C |