Heat Density
How to Convert J/m³ to BTU/ft³
To convert a measurement from Joules per cubic meter to British Thermal Units per cubic foot, you use the conversion factor that 1 J/m³ is approximately equal to 2.6839 × 10⁻⁵ BTU/ft³.
Example:
Convert a heat density of 1,000,000 J/m³ to BTU/ft³.
1,000,000 J/m³ × 0.000026839 BTU/ft³ / (J/m³) ≈ 26.84 BTU/ft³
Answer: A heat density of 1,000,000 J/m³ is equal to approximately 26.84 BTU/ft³.
Understanding Heat Density
Heat density, or volumetric heat capacity, is the amount of heat energy stored in a given volume of a substance per unit change in temperature. It is useful for applications where space is a constraint.