How do I convert langley to joules/square meter?

1 langley is equal to exactly 41839.999999999 joule/square meter [J/m²]. To convert from langleys to joules/square meter, multiply your value by 41839.999999999.

What is heat density?

Heat density, also known as thermal density or energy density by area, is the amount of heat energy distributed across a specific surface area. Common units include Joules per square meter (J/m²) and Btu per square foot (Btu/ft²).

How many Joules per square meter are in a Btu per square foot?

1 Btu (IT)/square foot [Btu/ft²] is equal to exactly 11356.526682227 joule/square meter [J/m²].

Heat Density Converter - Joules/m², Langleys & Btu/ft²

Heat Density Converter

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Complete list of heat density units for conversion

joule/square meter [J/m^2]
1 calorie (th)/square centimeter = 41839.999999999 joule/square meter [J/m^2]calorie (th)/square centimeter to joule/square meter, joule/square meter to calorie (th)/square centimeter
1 langley = 41839.999999999 joule/square meter [J/m^2]langley to joule/square meter, joule/square meter to langley
1 Btu (IT)/square foot = 11356.526682227 joule/square meter [J/m^2]Btu (IT)/square foot to joule/square meter, joule/square meter to Btu (IT)/square foot
1 Btu (th)/square foot = 11348.931794793 joule/square meter [J/m^2]Btu (th)/square foot to joule/square meter, joule/square meter to Btu (th)/square foot