Convert Joule per kilogram kelvin to Millijoule per kilogram kelvin
Convert Joule per kilogram kelvin (J/(kg·K)) to Millijoule per kilogram kelvin (mJ/(kg·K)) instantly and accurately.
Conversion Formula
mJ/(kg·K) = J/(kg·K) × 1000
About Joule per kilogram kelvin
The joule per kilogram kelvin (J/(kg·K)) is the SI coherent unit for specific heat capacity, defined by the relation Q = mcΔT. Water ≈4182, iron ≈449, aluminium ≈897, copper ≈385, glass ≈840 J/(kg·K). Referenced in ISO 31-4 and all major international standards. 1 J/(kg·K) = 1 J/(kg·°C) = 10⁻³ kJ/(kg·K).
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).
Quick Reference Table
| Joule per kilogram kelvin (J/(kg·K)) | Millijoule per kilogram kelvin (mJ/(kg·K)) |
|---|---|
| 1 J/(kg·K) | 1000 mJ/(kg·K) |
| 2 J/(kg·K) | 2000 mJ/(kg·K) |
| 5 J/(kg·K) | 5000 mJ/(kg·K) |
| 10 J/(kg·K) | 10000 mJ/(kg·K) |
| 25 J/(kg·K) | 25000 mJ/(kg·K) |
| 50 J/(kg·K) | 50000 mJ/(kg·K) |
| 100 J/(kg·K) | 100000 mJ/(kg·K) |