Home / Heat Converters / Heat Density
Heat Density Converter
Energy per unit area: J/m², langley
Heat Density Converter
About the heat density converter
This converter handles 7 heat density units. Enter a value in either field and the other updates instantly — there is no button to press and nothing to submit. Use the swap control to reverse the direction of the conversion.
All factors are stored against a single base unit
(
Joule/meter²) and applied in one step, so converting A → B
never accumulates rounding error from an intermediate hop.Quick reference table
| Joule/meter² | BTU/foot² |
|---|---|
| 1 J/m² | 8.805509061e-05 BTU/ft² |
| 2 J/m² | 0.0001761101812 BTU/ft² |
| 5 J/m² | 0.000440275453 BTU/ft² |
| 10 J/m² | 0.0008805509061 BTU/ft² |
| 20 J/m² | 0.001761101812 BTU/ft² |
| 50 J/m² | 0.00440275453 BTU/ft² |
| 100 J/m² | 0.008805509061 BTU/ft² |
| 500 J/m² | 0.0440275453 BTU/ft² |
| 1000 J/m² | 0.08805509061 BTU/ft² |
All 7 units
| Unit | Equals in Joule/meter² |
|---|---|
| Joule/meter² (J/m²) | 1 |
| Kilojoule/meter² | 1000 |
| Joule/centimeter² | 10000 |
| Calorie/centimeter² | 41840 |
| Langley | 41840 |
| BTU/foot² (BTU/ft²) | 11356.52684 |
| Kilocalorie/meter² | 4184 |