Convert Millijoule per kilogram kelvin to Thermochemical BTU per pound per degree Fahrenheit
Convert Millijoule per kilogram kelvin (mJ/(kg·K)) to Thermochemical BTU per pound per degree Fahrenheit (BTU(th)/(lb·°F)) instantly and accurately.
Conversion Formula
BTU(th)/(lb·°F) = mJ/(kg·K) × 2.390057361e-7
About Millijoule per kilogram kelvin
The millijoule per kilogram kelvin (mJ/(kg·K)) equals exactly 10⁻³ J/(kg·K). Used for very light gases at extreme conditions and in precision calorimetry where tiny heat capacities must be measured. Rarely encountered in standard engineering but useful when expressing specific heat of dilute aerosols or highly rarefied media. 1 mJ/(kg·K) = 10⁻³ J/(kg·K).
About Thermochemical BTU per pound per degree Fahrenheit
The thermochemical BTU per pound per degree Fahrenheit (BTU(th)/(lb·°F)) equals exactly 4184 J/(kg·K) (derived: 1 BTU(th) = 1054.350264 J; /lb/°F). Numerically identical to cal(th)/(g·°C) because both are defined via the thermochemical calorie. Used in older American thermodynamic tables. Water ≈1 BTU(th)/(lb·°F). 1 BTU(th)/(lb·°F) = 4184 J/(kg·K).
Quick Reference Table
| Millijoule per kilogram kelvin (mJ/(kg·K)) | Thermochemical BTU per pound per degree Fahrenheit (BTU(th)/(lb·°F)) |
|---|---|
| 1 mJ/(kg·K) | 2.39 × 10-7 BTU(th)/(lb·°F) |
| 2 mJ/(kg·K) | 4.78 × 10-7 BTU(th)/(lb·°F) |
| 5 mJ/(kg·K) | 1.195 × 10-6 BTU(th)/(lb·°F) |
| 10 mJ/(kg·K) | 2.39 × 10-6 BTU(th)/(lb·°F) |
| 25 mJ/(kg·K) | 5.975 × 10-6 BTU(th)/(lb·°F) |
| 50 mJ/(kg·K) | 1.195 × 10-5 BTU(th)/(lb·°F) |
| 100 mJ/(kg·K) | 2.39 × 10-5 BTU(th)/(lb·°F) |