Convert IT BTU per Pound Mass Degree Fahrenheit to Joule per Kilogram Kelvin
Live bidirectional calculator for IT BTUs per Pound Mass Degree Fahrenheit (Btu_IT/(lbm·°F)) and Joules per Kilogram Kelvin (J/(kg·K)) with verified formula and conversion charts.
Specific Heat Capacity8 units
How the Calculation Works (Linear Scaling)
Since 1 IT BTU per Pound Mass Degree Fahrenheit = 4186.8 Joules per Kilogram Kelvin, multiply the value in IT BTUs per Pound Mass Degree Fahrenheit by 4186.8.
IT BTU per Pound Mass Degree Fahrenheit to Joule per Kilogram Kelvin Conversion Table
Precomputed values for quick reference and printing.
| IT BTU per Pound Mass Degree Fahrenheit | Joule per Kilogram Kelvin |
|---|---|
| 1 Btu_IT/(lbm·°F) | 4186.8 J/(kg·K) |
| 2 Btu_IT/(lbm·°F) | 8373.6 J/(kg·K) |
| 3 Btu_IT/(lbm·°F) | 12560.4 J/(kg·K) |
| 4 Btu_IT/(lbm·°F) | 16747.2 J/(kg·K) |
| 5 Btu_IT/(lbm·°F) | 20934 J/(kg·K) |
| 6 Btu_IT/(lbm·°F) | 25120.8 J/(kg·K) |
| 7 Btu_IT/(lbm·°F) | 29307.6 J/(kg·K) |
| 8 Btu_IT/(lbm·°F) | 33494.4 J/(kg·K) |
| 9 Btu_IT/(lbm·°F) | 37681.2 J/(kg·K) |
| 10 Btu_IT/(lbm·°F) | 41868 J/(kg·K) |
| 15 Btu_IT/(lbm·°F) | 62802 J/(kg·K) |
| 20 Btu_IT/(lbm·°F) | 83736 J/(kg·K) |
| 25 Btu_IT/(lbm·°F) | 104670 J/(kg·K) |
| 30 Btu_IT/(lbm·°F) | 125604 J/(kg·K) |
| 40 Btu_IT/(lbm·°F) | 167472 J/(kg·K) |
| 50 Btu_IT/(lbm·°F) | 209340 J/(kg·K) |
| 75 Btu_IT/(lbm·°F) | 314010 J/(kg·K) |
| 100 Btu_IT/(lbm·°F) | 418680 J/(kg·K) |
| Joule per Kilogram Kelvin | IT BTU per Pound Mass Degree Fahrenheit |
|---|---|
| 1 J/(kg·K) | 0.0002 Btu_IT/(lbm·°F) |
| 2 J/(kg·K) | 0.0005 Btu_IT/(lbm·°F) |
| 3 J/(kg·K) | 0.0007 Btu_IT/(lbm·°F) |
| 4 J/(kg·K) | 0.001 Btu_IT/(lbm·°F) |
| 5 J/(kg·K) | 0.0012 Btu_IT/(lbm·°F) |
| 6 J/(kg·K) | 0.0014 Btu_IT/(lbm·°F) |
| 7 J/(kg·K) | 0.0017 Btu_IT/(lbm·°F) |
| 8 J/(kg·K) | 0.0019 Btu_IT/(lbm·°F) |
| 9 J/(kg·K) | 0.0021 Btu_IT/(lbm·°F) |
| 10 J/(kg·K) | 0.0024 Btu_IT/(lbm·°F) |
| 15 J/(kg·K) | 0.0036 Btu_IT/(lbm·°F) |
| 20 J/(kg·K) | 0.0048 Btu_IT/(lbm·°F) |
| 25 J/(kg·K) | 0.006 Btu_IT/(lbm·°F) |
| 30 J/(kg·K) | 0.0072 Btu_IT/(lbm·°F) |
| 40 J/(kg·K) | 0.0096 Btu_IT/(lbm·°F) |
| 50 J/(kg·K) | 0.0119 Btu_IT/(lbm·°F) |
| 75 J/(kg·K) | 0.0179 Btu_IT/(lbm·°F) |
| 100 J/(kg·K) | 0.0239 Btu_IT/(lbm·°F) |
About IT BTU per Pound Mass Degree Fahrenheit (Btu_IT/(lbm·°F))
The US customary specific heat capacity unit, defined as 1 IT BTU per pound-mass per °F interval. It is numerically equal to exactly 4,186.8 J/(kg·K).
History: Engineered so liquid water near room temperature has a specific heat of approximately 1.0 Btu/(lbm·°F).
Common Uses: US HVAC calculations, ASHRAE heat load sizing, American boiler engineering.
About Joule per Kilogram Kelvin (J/(kg·K))
The SI unit of specific heat capacity (c), representing the heat energy in joules required to raise 1 kilogram of a substance by 1 kelvin.
History: Codified as the SI standard following the development of modern thermodynamics (liquid water has c ≈ 4184 J/(kg·K)).
Common Uses: Calorimetry, thermodynamic process design, thermal mass engineering.
❓ Frequently Asked Questions
How many Joules per Kilogram Kelvin are in 1 IT BTU per Pound Mass Degree Fahrenheit?
There are exactly 4186.8 Joules per Kilogram Kelvin in 1 IT BTU per Pound Mass Degree Fahrenheit (1 Btu_IT/(lbm·°F) = 4186.8 J/(kg·K)).
What is the formula to convert IT BTU per Pound Mass Degree Fahrenheit to Joule per Kilogram Kelvin?
The formula is: Joule per Kilogram Kelvin = IT BTU per Pound Mass Degree Fahrenheit × 4186.8. Since 1 IT BTU per Pound Mass Degree Fahrenheit = 4186.8 Joules per Kilogram Kelvin, multiply the value in IT BTUs per Pound Mass Degree Fahrenheit by 4186.8.
How do I convert 1 Btu_IT/(lbm·°F) to J/(kg·K) manually?
To convert 1 Btu_IT/(lbm·°F) to J/(kg·K): apply the formula Joule per Kilogram Kelvin = IT BTU per Pound Mass Degree Fahrenheit × 4186.8. Substituting gives: 1 × 4186.8 = 4186.8 J/(kg·K).