Convert ppb per degree Fahrenheit to Per microkelvin
Convert ppb per degree Fahrenheit (ppb/°F) to Per microkelvin (1/μK) instantly and accurately.
Conversion Formula
1/μK = ppb/°F × 1.800000000e-15
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.
About Per microkelvin
The per microkelvin (1/μK) equals exactly 10⁶ /K. It is used in ultra-precision experiments probing anomalous thermal expansion extremely close to second-order phase transitions, such as the superfluid He-4 lambda point (2.1768 K) and magnetic phase boundaries in rare-earth compounds. 1 /μK = 10⁶ /K = 10¹² ppm/K.
Quick Reference Table
| ppb per degree Fahrenheit (ppb/°F) | Per microkelvin (1/μK) |
|---|---|
| 1 ppb/°F | 1.8 × 10-15 1/μK |
| 2 ppb/°F | 3.6 × 10-15 1/μK |
| 5 ppb/°F | 9 × 10-15 1/μK |
| 10 ppb/°F | 1.8 × 10-14 1/μK |
| 25 ppb/°F | 4.5 × 10-14 1/μK |
| 50 ppb/°F | 9 × 10-14 1/μK |
| 100 ppb/°F | 1.8 × 10-13 1/μK |