Heat Density conversion
1 joule/square meter (J/m²) equals 0.000088055092 btu (it)/square foot (Btu/ft²). Enter any value below to convert from J/m² to Btu/ft².
Enter a value and choose units. Results update instantly.
1 J/m² = 0.0000880551 Btu/ft²
| 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 |
Formula
Use this relationship for a direct conversion:
2 J/m² = 0.0001761102 Btu/ft².
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 (J/m²) | Btu (IT)/square foot (Btu/ft²) |
|---|---|
| 0.01 | 0.0000008806 |
| 0.1 | 0.0000088055 |
| 1 | 0.0000880551 |
| 2 | 0.0001761102 |
| 5 | 0.0004402755 |
| 10 | 0.0008805509 |
| 25 | 0.0022013773 |
| 50 | 0.0044027546 |
| 100 | 0.0088055092 |
| 1,000 | 0.0880550919 |
From unit
Joule/square meter (J/m²) is the base unit of Heat Density in the International System of Units (SI).
Symbol: J/m²
To unit
Btu (IT)/square foot (Btu/ft²) is a unit of Heat Density. 1 Btu/ft² = 11,356.52668 J/m²
Symbol: Btu/ft²
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 Btu/ft² = J/m² x 0.000088055092. 1 joule/square meter (J/m²) equals 0.000088055092 btu (it)/square foot (Btu/ft²).
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.
