Heat Flux Converter
Heat flux measures power passing through a surface area
W/m² → BTU/(h·ft²)
0.316998 BTU/(h·ft²)
Heat flux measures power passing through a surface area. Watts per square meter are used in insulation, solar, and electronics cooling calculations, while BTU per hour per square foot or square inch align with HVAC and heater ratings. Convert to compare thermal performance.
All unit results
| Supported Units | Value |
|---|---|
| Watt per Square Meter W/m² | 1 |
| Kilowatt per Square Meter kW/m² | 0.001 |
| Watt per Square Centimeter W/cm² | 0.0001 |
| BTU per Hour per Square Foot BTU/(h·ft²) | 0.316998 |
| Watt per Square Foot W/ft² | 0.092903 |
| Watt per Square Inch W/in² | 0.000645 |
| Calorie per Second per Square Centimeter cal/(s·cm²) | 0.000024 |
How to Use
Enter the value and your starting unit, such as watt per square meter or btu per hour per square foot, and your desired target unit from the dropdown menus. The tool will instantly output the precise heat flux conversion, along with a complete list of equivalent measurements. You can also quickly copy the value with or without units.
When to Use
Watts per square meter are used in insulation, solar, and electronics cooling calculations, while BTU per hour per square foot or square inch align with HVAC and heater ratings. Convert to compare thermal performance.
Common Heat Flux Conversions
| 1 Watt per Square Meter (W/m²) | = | 0.316998 BTU per Hour per Square Foot (BTU/(h·ft²)) |
| 1 Watt per Square Meter (W/m²) | = | 0.001 Kilowatt per Square Meter (kW/m²) |
| 1 Watt per Square Centimeter (W/cm²) | = | 3169.983306 BTU per Hour per Square Foot (BTU/(h·ft²)) |
| 1 Watt per Square Foot (W/ft²) | = | 0.006944 Watt per Square Inch (W/in²) |
Quick Conversion Links
Supported Units
Common Questions
What is the Heat Flux converter used for?
Heat flux measures power passing through a surface area. Watts per square meter are used in insulation, solar, and electronics cooling calculations, while BTU per hour per square foot or square inch align with HVAC and heater ratings. Convert to compare thermal performance.