Heat Converters
Heat Flux Density Converter
Convert heat flux density between W/m² and BTU per hour per square foot — used in boiler, HVAC and electronics cooling design.
HEAT FLUX DENSITY CONVERTER — INSTANT RESULT
All supported units — heat flux density
| Unit | Symbol | To watt/square meter (W/m²) | From watt/square meter (W/m²) |
|---|---|---|---|
| Watt/square meter | W/m² | 1 W/m² = 1 W/m² | 1 W/m² = 1 W/m² |
| Kilowatt/square meter | kW/m² | 1 kW/m² = 1,000 W/m² | 1 W/m² = 0.001 kW/m² |
| Watt/square centimeter | W/cm² | 1 W/cm² = 10,000 W/m² | 1 W/m² = 0.0001 W/cm² |
| BTU/hour·square foot | BTU/h·ft² | 1 BTU/h·ft² = 3.15459075 W/m² | 1 W/m² = 0.31699833 BTU/h·ft² |
| Calorie/second·square centimeter | cal/s·cm² | 1 cal/s·cm² = 41,840 W/m² | 1 W/m² = 2.3900574e-05 cal/s·cm² |
| Horsepower/square foot | hp/ft² | 1 hp/ft² = 8,026.6466 W/m² | 1 W/m² = 0.00012458503 hp/ft² |
Popular heat flux density conversions
Frequently asked questions
What units does this heat flux density converter support?
It supports 6 units: Watt/square meter (W/m²), Kilowatt/square meter (kW/m²), Watt/square centimeter (W/cm²), BTU/hour·square foot (BTU/h·ft²), Calorie/second·square centimeter (cal/s·cm²), Horsepower/square foot (hp/ft²).
What is the base unit of heat flux density?
The SI reference unit is the watt/square meter (W/m²). Every conversion is computed by converting the input to the base unit, then from the base unit to the target unit, so chained precision is preserved.
Is this converter accurate?
Yes. Conversion factors use exact legal definitions where they exist (for example 1 in = 25.4 mm exactly) and CODATA/ISO constants otherwise. Results are shown to up to 10 significant figures.