Convert Percent per degree Fahrenheit to ppb per degree Fahrenheit
Convert Percent per degree Fahrenheit (%/°F) to ppb per degree Fahrenheit (ppb/°F) instantly and accurately.
Conversion Formula
ppb/°F = %/°F × 10000000
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 ppb per degree Fahrenheit
The ppb/°F equals 9/5 × 10⁻⁹ /K ≈1.8 × 10⁻⁹ /K, the Fahrenheit counterpart of ppb/K. Used when ultra-low-expansion glass ceramics are characterised in US laboratories using Fahrenheit protocols. Zerodur at ±0.02 ppb/K ≈ ±0.011 ppb/°F. 1 ppb/°F = 9/5 × 10⁻⁹ /K ≈1.8 ppb/K.
Quick Reference Table
| Percent per degree Fahrenheit (%/°F) | ppb per degree Fahrenheit (ppb/°F) |
|---|---|
| 1 %/°F | 10000000 ppb/°F |
| 2 %/°F | 20000000 ppb/°F |
| 5 %/°F | 50000000 ppb/°F |
| 10 %/°F | 100000000 ppb/°F |
| 25 %/°F | 250000000 ppb/°F |
| 50 %/°F | 500000000 ppb/°F |
| 100 %/°F | 1000000000 ppb/°F |