Convert Percent per kelvin to ppb per kelvin
Convert Percent per kelvin (%/K) to ppb per kelvin (ppb/K) instantly and accurately.
Conversion Formula
ppb/K = %/K × 10000000
About Percent per kelvin
The %/K equals exactly 10⁻² /K = 10 000 ppm/K and is used for high-CTE materials such as polymers, foams, and rubber. PTFE: ≈0.0135 %/K; HDPE: ≈0.015 %/K; natural rubber: ≈0.06 %/K; silicone rubber: ≈0.10 %/K. 1 %/K = 10⁻² /K = 10 mm/(m·K) = 10 000 ppm/K.
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.
Quick Reference Table
| Percent per kelvin (%/K) | ppb per kelvin (ppb/K) |
|---|---|
| 1 %/K | 10000000 ppb/K |
| 2 %/K | 20000000 ppb/K |
| 5 %/K | 50000000 ppb/K |
| 10 %/K | 100000000 ppb/K |
| 25 %/K | 250000000 ppb/K |
| 50 %/K | 500000000 ppb/K |
| 100 %/K | 1000000000 ppb/K |