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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.

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Watts per square meter
99.37 W/m²

31.5 BTU/(h·ft²) = 99.37 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 31.5 × 3.15459075 = 99.37 W/m²

Nearby values

BTU per hour-square foot Watts per square meter Kilocalories per hour-square meter Kilowatts per square meter
1.5 BTU/(h·ft²) 4.73 W/m² 4.07 0.00473
11.5 BTU/(h·ft²) 36.28 W/m² 31.21 0.04
21.5 BTU/(h·ft²) 67.82 W/m² 58.36 0.07
31.5 BTU/(h·ft²) 99.37 W/m² 85.5 0.1
41.5 BTU/(h·ft²) 130.92 W/m² 112.64 0.13
51.5 BTU/(h·ft²) 162.46 W/m² 139.79 0.16
61.5 BTU/(h·ft²) 194.01 W/m² 166.93 0.19

Printed from rocketcalc.io/heat-flux/btu-per-h-ft2-to-w-per-m2/31.5