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... Btu (th) per hour square foot = ... Watt per square meter

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Btu (th) per hour square foot to Watt per square meter Converter

Use this page to convert btu (th) per hour square foot values into watt per square meter, with background details, formulas, a worked example, and a quick conversion table.

Conversion formula

1 Btu (th)/(h*ft^2) = 3.15248105410906 W/m^2

1 W/m^2 = 0.317210471002376 Btu (th)/(h*ft^2)

Example: 500 Btu (th)/(h*ft^2) = 1,576.24052705453 W/m^2

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Btu (th) per hour square foot

One Btu (th) per hour square foot is equal to 3.152481054109057 watts per square meter.

History: Hour-based Btu heat flux units are common in older building and HVAC references.

Current use: This unit supports source data that uses thermochemical Btu per hour per square foot.

Also written as Btu (th)/(h*ft^2).

Watt per square meter

Watt per square meter expresses heat flow rate through or across a unit area.

History: This SI expression became the standard heat flux density reference in heat transfer and radiation work.

Current use: It is used in thermal engineering, building science, solar radiation, electronics cooling, and process design.

Also written as W/m^2.

Btu (th) per hour square foot to Watt per square meter table

Btu (th) per hour square foot [Btu (th)/(h*ft^2)]Watt per square meter [W/m^2]
0.01 Btu (th)/(h*ft^2)0.0315248105410906 W/m^2
0.1 Btu (th)/(h*ft^2)0.315248105410906 W/m^2
1 Btu (th)/(h*ft^2)3.15248105410906 W/m^2
2 Btu (th)/(h*ft^2)6.30496210821811 W/m^2
5 Btu (th)/(h*ft^2)15.7624052705453 W/m^2
10 Btu (th)/(h*ft^2)31.5248105410906 W/m^2
20 Btu (th)/(h*ft^2)63.0496210821811 W/m^2
50 Btu (th)/(h*ft^2)157.624052705453 W/m^2
100 Btu (th)/(h*ft^2)315.248105410906 W/m^2