Langley to BTU (th) per Square Foot Conversion

Convert between Langley and BTU (th) per Square Foot quickly and accurately.

From Langley

To BTU (th) per Square Foot

Btu/ft²

How to Convert Langley to BTU (th) per Square Foot

Conversion Formula

1 Ly = 3.687 Btu/ft²

1 Btu/ft² = 0.271 Ly

Example

Convert 15 Ly to Btu/ft²:

15 Ly = 15 × 3.687 Btu/ft² = 55.3 Btu/ft²

Unit Information

Learn about the heat density units you're converting between

Langley

Definition

The Langley (Ly) is a unit of heat density equal to approximately 41,840 joules per square meter, originally defined as one calorie per square centimeter. It represents the amount of heat energy per unit area, commonly used in solar energy and atmospheric science applications.

History/Origin

Named after Samuel Pierpont Langley, an American astronomer and physicist, this unit was developed for measuring solar radiation and atmospheric heat density. It became standard in solar energy research and atmospheric science applications, providing a convenient measure for heat density in these specialized fields.

Current Use

Widely used in solar energy research, atmospheric science, and climate studies for measuring solar radiation and heat density. It is essential for calculating solar energy potential, analyzing atmospheric heat transfer, and studying climate change effects in scientific research applications.

Multiplier

41840

Offset

BTU (th) per Square Foot

Btu/ft²

Definition

The BTU (th) per square foot (Btu/ft²) is an imperial unit of heat density equal to approximately 11,349 joules per square meter. It represents the amount of heat energy per unit area, commonly used in specialized thermal engineering applications where thermochemical BTU units are specified.

History/Origin

Developed as part of the thermochemical BTU system for precise heat density measurements, this unit became standard in specialized thermal engineering and research applications. It provides a precise measure for heat density using thermochemical BTU units.

Current Use

Used in specialized thermal engineering applications, thermochemical analysis, and research contexts where thermochemical BTU units are specified. It is essential for precise thermal calculations, thermochemical analysis, and specialized thermal engineering applications.

Multiplier

11348.932

Offset