Convert Millijoule per kilogram kelvin to International table BTU per pound per degree Fahrenheit
Convert Millijoule per kilogram kelvin (mJ/(kg·K)) to International table BTU per pound per degree Fahrenheit (BTU(IT)/(lb·°F)) instantly and accurately.
Conversion Formula
BTU(IT)/(lb·°F) = mJ/(kg·K) × 2.388458966e-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 International table BTU per pound per degree Fahrenheit
The international table BTU per pound per degree Fahrenheit (BTU(IT)/(lb·°F)) equals (1055.05585262 × 9)/(0.45359237 × 5) J/(kg·K) = 4186.8 J/(kg·K). The standard US unit for specific heat capacity in ASHRAE, ASTM, and mechanical engineering references. Water: 1.000 BTU(IT)/(lb·°F); steel: ≈0.108; air: ≈0.240. 1 BTU(IT)/(lb·°F) = 4186.8 J/(kg·K).
Quick Reference Table
| Millijoule per kilogram kelvin (mJ/(kg·K)) | International table BTU per pound per degree Fahrenheit (BTU(IT)/(lb·°F)) |
|---|---|
| 1 mJ/(kg·K) | 2.388 × 10-7 BTU(IT)/(lb·°F) |
| 2 mJ/(kg·K) | 4.777 × 10-7 BTU(IT)/(lb·°F) |
| 5 mJ/(kg·K) | 1.194 × 10-6 BTU(IT)/(lb·°F) |
| 10 mJ/(kg·K) | 2.388 × 10-6 BTU(IT)/(lb·°F) |
| 25 mJ/(kg·K) | 5.971 × 10-6 BTU(IT)/(lb·°F) |
| 50 mJ/(kg·K) | 1.194 × 10-5 BTU(IT)/(lb·°F) |
| 100 mJ/(kg·K) | 2.388 × 10-5 BTU(IT)/(lb·°F) |