Convert Per degree Celsius to ppb per degree Fahrenheit
Convert Per degree Celsius (1/°C) to ppb per degree Fahrenheit (ppb/°F) instantly and accurately.
Conversion Formula
ppb/°F = 1/°C × 555555555.6
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.
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
| Per degree Celsius (1/°C) | ppb per degree Fahrenheit (ppb/°F) |
|---|---|
| 1 1/°C | 555556000 ppb/°F |
| 2 1/°C | 1.111 × 109 ppb/°F |
| 5 1/°C | 2.778 × 109 ppb/°F |
| 10 1/°C | 5.556 × 109 ppb/°F |
| 25 1/°C | 1.389 × 1010 ppb/°F |
| 50 1/°C | 2.778 × 1010 ppb/°F |
| 100 1/°C | 5.556 × 1010 ppb/°F |