1 joule/square meter (J/m²) equals 0.000023900574 langley (Ly). Enter any value below to convert from J/m² to Ly.
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1 J/m² = 0.0000239006 Ly
All Heat Density units
From 1 J/m²
Unit
Value
Joule/square meter J/m²
1
Langley Ly
0.0000239006
Btu (IT)/square foot Btu/ft²
0.0000880551
Calorie (IT)/square centimeter cal/cm²
0.0000239006
Recent conversions
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Formula
J/m² to Ly conversion formula
Use this relationship for a direct conversion:
Ly = J/m² x 0.000023900574
Worked example
2 J/m² = 0.0000478011 Ly.
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.
Quick reference
Joule/square meter to Langley table
Joule/square meter (J/m²)
Langley (Ly)
0.01
0.000000239
0.1
0.0000023901
1
0.0000239006
2
0.0000478011
5
0.0001195029
10
0.0002390057
25
0.0005975143
50
0.0011950287
100
0.0023900574
1,000
0.0239005736
From unit
About the joule/square meter
Joule/square meter (J/m²) is the base unit of Heat Density in the International System of Units (SI).
Symbol: J/m²
To unit
About the langley
Langley (Ly) is a unit of Heat Density. 1 Ly = 41,840 J/m²
Use the formula Ly = J/m² x 0.000023900574. 1 joule/square meter (J/m²) equals 0.000023900574 langley (Ly).
Is the J/m² to Ly conversion exact?
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.