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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
257.73 W/m²

81.7 BTU/(h·ft²) = 257.73 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 81.7 × 3.15459075 = 257.73 W/m²

Nearby values

BTU per hour-square foot Watts per square meter Kilocalories per hour-square meter Kilowatts per square meter
51.7 BTU/(h·ft²) 163.09 W/m² 140.33 0.16
61.7 BTU/(h·ft²) 194.64 W/m² 167.47 0.19
71.7 BTU/(h·ft²) 226.18 W/m² 194.61 0.23
81.7 BTU/(h·ft²) 257.73 W/m² 221.76 0.26
91.7 BTU/(h·ft²) 289.28 W/m² 248.9 0.29
101.7 BTU/(h·ft²) 320.82 W/m² 276.04 0.32
111.7 BTU/(h·ft²) 352.37 W/m² 303.18 0.35

Printed from rocketcalc.io/heat-flux/btu-per-h-ft2-to-w-per-m2/81.7