Convert IT BTU per Square Foot to Joule per Square Meter
Live bidirectional calculator for IT BTUs per Square Foot (Btu_IT/ft²) and Joules per Square Meter (J/m²) with verified formula and conversion charts.
Heat Density5 units
How the Calculation Works (Linear Scaling)
Since 1 IT BTU per Square Foot = 11356.526682 Joules per Square Meter, multiply the value in IT BTUs per Square Foot by 11356.526682.
IT BTU per Square Foot to Joule per Square Meter Conversion Table
Precomputed values for quick reference and printing.
| IT BTU per Square Foot | Joule per Square Meter |
|---|---|
| 1 Btu_IT/ft² | 11356.5267 J/m² |
| 2 Btu_IT/ft² | 22713.0534 J/m² |
| 3 Btu_IT/ft² | 34069.58 J/m² |
| 4 Btu_IT/ft² | 45426.1067 J/m² |
| 5 Btu_IT/ft² | 56782.6334 J/m² |
| 6 Btu_IT/ft² | 68139.1601 J/m² |
| 7 Btu_IT/ft² | 79495.6868 J/m² |
| 8 Btu_IT/ft² | 90852.2135 J/m² |
| 9 Btu_IT/ft² | 102208.7401 J/m² |
| 10 Btu_IT/ft² | 113565.2668 J/m² |
| 15 Btu_IT/ft² | 170347.9002 J/m² |
| 20 Btu_IT/ft² | 227130.5336 J/m² |
| 25 Btu_IT/ft² | 283913.1671 J/m² |
| 30 Btu_IT/ft² | 340695.8005 J/m² |
| 40 Btu_IT/ft² | 454261.0673 J/m² |
| 50 Btu_IT/ft² | 567826.3341 J/m² |
| 75 Btu_IT/ft² | 851739.5012 J/m² |
| 100 Btu_IT/ft² | 1135652.6682 J/m² |
| Joule per Square Meter | IT BTU per Square Foot |
|---|---|
| 1 J/m² | 8.8055e-5 Btu_IT/ft² |
| 2 J/m² | 0.0002 Btu_IT/ft² |
| 3 J/m² | 0.0003 Btu_IT/ft² |
| 4 J/m² | 0.0004 Btu_IT/ft² |
| 5 J/m² | 0.0004 Btu_IT/ft² |
| 6 J/m² | 0.0005 Btu_IT/ft² |
| 7 J/m² | 0.0006 Btu_IT/ft² |
| 8 J/m² | 0.0007 Btu_IT/ft² |
| 9 J/m² | 0.0008 Btu_IT/ft² |
| 10 J/m² | 0.0009 Btu_IT/ft² |
| 15 J/m² | 0.0013 Btu_IT/ft² |
| 20 J/m² | 0.0018 Btu_IT/ft² |
| 25 J/m² | 0.0022 Btu_IT/ft² |
| 30 J/m² | 0.0026 Btu_IT/ft² |
| 40 J/m² | 0.0035 Btu_IT/ft² |
| 50 J/m² | 0.0044 Btu_IT/ft² |
| 75 J/m² | 0.0066 Btu_IT/ft² |
| 100 J/m² | 0.0088 Btu_IT/ft² |
About IT BTU per Square Foot (Btu_IT/ft²)
The US customary unit of heat density, defined as 1 IT BTU per square foot (≈ 11,356.53 J/m²).
History: Standard US engineering measure for cumulative solar irradiance and thermal energy absorption per unit area.
Common Uses: US solar collector daily gain calculations, building envelope thermal exposure.
About Joule per Square Meter (J/m²)
The SI unit of surface heat density or radiant exposure, representing 1 joule of thermal or radiant energy accumulated per square meter of surface area.
History: Codified in radiometry and heat transfer as radiant exposure (H) and area energy density.
Common Uses: Solar insolation daily totals, laser pulse fluence, thermal radiation surface absorption.
❓ Frequently Asked Questions
How many Joules per Square Meter are in 1 IT BTU per Square Foot?
There are exactly 11356.526682 Joules per Square Meter in 1 IT BTU per Square Foot (1 Btu_IT/ft² = 11356.526682 J/m²).
What is the formula to convert IT BTU per Square Foot to Joule per Square Meter?
The formula is: Joule per Square Meter = IT BTU per Square Foot × 11356.526682. Since 1 IT BTU per Square Foot = 11356.526682 Joules per Square Meter, multiply the value in IT BTUs per Square Foot by 11356.526682.
How do I convert 1 Btu_IT/ft² to J/m² manually?
To convert 1 Btu_IT/ft² to J/m²: apply the formula Joule per Square Meter = IT BTU per Square Foot × 11356.526682. Substituting gives: 1 × 11356.526682 = 11356.5267 J/m².