Convert ppb per kelvin to Per microkelvin
Convert ppb per kelvin (ppb/K) to Per microkelvin (1/μK) instantly and accurately.
Conversion Formula
1/μK = ppb/K × 1.000000000e-15
About ppb per kelvin
The ppb/K (parts per billion per kelvin) equals 10⁻⁹ /K and is the resolution unit for ultra-low-CTE materials. Zerodur Class 0 (±0.02 ppb/K) and ULE titanium-silicate glass (±0.03 ppb/K) at 20 °C are characterised in ppb/K for gravitational-wave interferometers and space telescope optical benches. 1 ppb/K = 10⁻⁹ /K = 10⁻³ ppm/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 kelvin (ppb/K) | Per microkelvin (1/μK) |
|---|---|
| 1 ppb/K | 1 × 10-15 1/μK |
| 2 ppb/K | 2 × 10-15 1/μK |
| 5 ppb/K | 5 × 10-15 1/μK |
| 10 ppb/K | 1 × 10-14 1/μK |
| 25 ppb/K | 2.5 × 10-14 1/μK |
| 50 ppb/K | 5 × 10-14 1/μK |
| 100 ppb/K | 1 × 10-13 1/μK |