Heat flux (thermal flux) density is the rate of heat transfer per unit area. Also called heat transfer rate intensity.
The heat flux calculation formula: Heat Flux = Heat Transfer Rate / Area
SI unit of heat flux is watts per square meter. Other common units are btu/hour per square feet, kilowatt per square meter and joule/second per square meters.
For heat capacity conversions please goto Heat Capacity
For heat transfer coefficient conversions please goto
Heat Transfer Coefficient