Heat Density conversion
1 langley (Ly) equals 41,840 joule/square meter (J/m²). Enter any value below to convert from Ly to J/m².
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1 Ly = 41,840 J/m²
| Unit | Value |
|---|---|
| Joule/square meter J/m² | 41,840 |
| Langley Ly | 1 |
| Btu (IT)/square foot Btu/ft² | 3.6842250434 |
| Calorie (IT)/square centimeter cal/cm² | 1 |
Formula
Use this relationship for a direct conversion:
2 Ly = 83,680 J/m².
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
| Langley (Ly) | Joule/square meter (J/m²) |
|---|---|
| 0.01 | 418.4 |
| 0.1 | 4,184 |
| 1 | 41,840 |
| 2 | 83,680 |
| 5 | 209,200 |
| 10 | 418,400 |
| 25 | 1,046,000 |
| 50 | 2,092,000 |
| 100 | 4,184,000 |
| 1,000 | 41,840,000 |
From unit
Langley (Ly) is a unit of Heat Density. 1 Ly = 41,840 J/m²
Symbol: Ly
To unit
Joule/square meter (J/m²) is the base unit of Heat Density in the International System of Units (SI).
Symbol: J/m²
Keep converting
Source
The SI framework is checked against NIST Guide for the Use of the International System of Units; conventional factors come from the extended factor inventory. Calculations use full internal precision before display rounding.
View the complete heat density converterQuestions
Use the formula J/m² = Ly x 41,840. 1 langley (Ly) equals 41,840 joule/square meter (J/m²).
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.
