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Watts per square meter to BTU per hour-square foot

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

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BTU per hour-square foot
317 BTU/(h·ft²)

1,000 W/m² = 317 BTU/(h·ft²)

Also equals

How it works

BTU/(h·ft²) = W/m² ÷ 3.15459075

One BTU per hour-square foot is about 3.15459075 watts per square meter, so dividing by 3.15459075 turns watts per square meter into BTU per hour-square foot. For example, 1,000 W/m² is about 317 BTU/(h·ft²).

  1. Divide by 3.15459075 1,000 ÷ 3.15459075 = 317 BTU/(h·ft²)

Nearby values

Watts per square meter BTU per hour-square foot Kilocalories per hour-square meter Kilowatts per square meter
700 W/m² 221.9 BTU/(h·ft²) 602.29 0.7
800 W/m² 253.6 BTU/(h·ft²) 688.34 0.8
900 W/m² 285.3 BTU/(h·ft²) 774.38 0.9
1,000 W/m² 317 BTU/(h·ft²) 860.42 1
1,100 W/m² 348.7 BTU/(h·ft²) 946.46 1.1
1,200 W/m² 380.4 BTU/(h·ft²) 1,032.5 1.2
1,300 W/m² 412.1 BTU/(h·ft²) 1,118.55 1.3

Printed from rocketcalc.io/heat-flux/w-per-m2-to-btu-per-h-ft2/1000