eFunda: Convert langley (flux) to other Energy flux units

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Calculators

langley (flux)

Symbol:

Category:

Energy flux

SI Equivalent:

697.5 W/m²

Dimension:

MT^-3

Notes

Named after the American physicist Samuel Pierpont Langley (1834-1906), the langley is roughly equal to half the surface density of solar radiation on earth.
1 langley (power) = 1 cal₁₅/cm²-min


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1 ly =

Energy flux
	Symbol	Unit Name
221.106	Btu (IT)/h-ft²	British thermal unit (IT) per hour per square foot
221.254	Btu (therm.)/h-ft²	British thermal unit (therm.) per hour per square foot
697.5	W/m²	watt per square meter


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Glossary

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