Skip to content

BTU per hour-square foot to watts per square meter

Convert BTU per hour-square foot to watts per square meter, with the math shown step by step.

Favorite
Watts per square meter
400 W/m²

126.8 BTU/(h·ft²) = 400 W/m²

Also equals

How it works

W/m² = BTU/(h·ft²) × 3.15459075

One BTU per hour-square foot is about 3.15459075 watts per square meter, so multiplying by 3.15459075 turns BTU per hour-square foot into watts per square meter. For example, 300 BTU/(h·ft²) is about 946.4 W/m².

  1. Multiply by 3.15459075 126.8 × 3.15459075 = 400 W/m²

Nearby values

BTU per hour-square foot Watts per square meter Kilocalories per hour-square meter Kilowatts per square meter
96.8 BTU/(h·ft²) 305.36 W/m² 262.74 0.31
106.8 BTU/(h·ft²) 336.91 W/m² 289.88 0.34
116.8 BTU/(h·ft²) 368.46 W/m² 317.03 0.37
126.8 BTU/(h·ft²) 400 W/m² 344.17 0.4
136.8 BTU/(h·ft²) 431.55 W/m² 371.31 0.43
146.8 BTU/(h·ft²) 463.09 W/m² 398.46 0.46
156.8 BTU/(h·ft²) 494.64 W/m² 425.6 0.49

Printed from rocketcalc.io/heat-flux/btu-per-h-ft2-to-w-per-m2/126.8