Heat Density Converter

Comprehensive Heat Density Converter

Heat density is an important parameter in heat transfer studies, representing the amount of thermal energy per unit area. Our Heat Density Converter allows you to quickly and accurately convert between various heat density units—from the SI unit (joule per square meter) to units used in solar radiation and building energy analysis, such as calories per square centimeter, langleys, and Btu per square foot.

What Units Are Covered?

Our converter supports a complete list of heat density units with conversion factors defined relative to joule/square meter [J/m²]:

• Joule/square meter [J/m²]:
  The SI base unit for heat density.

• Calorie (th)/square centimeter:
  1 cal (th)/cm² ≈ 41,840 J/m².

• Langley:
  1 langley ≈ 41,840 J/m².

• Btu (IT)/square foot:
  1 Btu (IT)/ft² ≈ 11,356.53 J/m².

• Btu (th)/square foot:
  1 Btu (th)/ft² ≈ 11,348.93 J/m².

How Does It Work?

Our converter uses a two-step process:

1. Convert to the Base Unit:
   The input value is first converted into joules per square meter using the conversion factor of the selected “From” unit.

2. Convert to the Target Unit:
   The joule per square meter value is then converted to the desired “To” unit using its corresponding conversion factor.

This process ensures precise and consistent conversions for all your heat density calculations.