Heat Density conversion
1 btu (it)/square foot (Btu/ft²) equals 11,356.526680000001 joule/square meter (J/m²). Enter any value below to convert from Btu/ft² to J/m².
Enter a value and choose units. Results update instantly.
1 Btu/ft² = 11,356.52668 J/m²
| Unit | Value |
|---|---|
| Joule/square meter J/m² | 11,356.52668 |
| Langley Ly | 0.2714275019 |
| Btu (IT)/square foot Btu/ft² | 1 |
| Calorie (IT)/square centimeter cal/cm² | 0.2714275019 |
Formula
Use this relationship for a direct conversion:
2 Btu/ft² = 22,713.05336 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
| Btu (IT)/square foot (Btu/ft²) | Joule/square meter (J/m²) |
|---|---|
| 0.01 | 113.5652668 |
| 0.1 | 1,135.652668 |
| 1 | 11,356.52668 |
| 2 | 22,713.05336 |
| 5 | 56,782.6334 |
| 10 | 113,565.2668 |
| 25 | 283,913.167 |
| 50 | 567,826.334 |
| 100 | 1,135,652.6680000001 |
| 1,000 | 11,356,526.6800000016 |
From unit
Btu (IT)/square foot (Btu/ft²) is a unit of Heat Density. 1 Btu/ft² = 11,356.52668 J/m²
Symbol: Btu/ft²
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 = Btu/ft² x 11,356.526680000001. 1 btu (it)/square foot (Btu/ft²) equals 11,356.526680000001 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.
