Watt per Square Meter to BTU (IT) per Second Square Foot

Convert Watt per Square Meter [W/m²] to BTU (IT) per Second Square Foot [BTU(IT)/(s·ft²)] and vice versa.

From

Conversion Formula

Example: 1 W/m² = 0.0000880551 BTU(IT)/(s·ft²)

The conversion uses the following relationship: Watt per Square Meter values are converted to the base unit (Watt per Square Meter), then converted to BTU (IT) per Second Square Foot.

Related Heat Flux Density Conversions

W/m² to kW/m² BTU(IT)/(s·ft²) to kW/m²

W/m² to BTU(IT)/(h·ft²)BTU(IT)/(s·ft²) to BTU(IT)/(h·ft²)

W/m² to BTU(th)/(h·ft²)BTU(IT)/(s·ft²) to BTU(th)/(h·ft²)

W/m² to BTU(th)/(s·ft²)BTU(IT)/(s·ft²) to BTU(th)/(s·ft²)

W/m² to BTU(th)/(s·in²)BTU(IT)/(s·ft²) to BTU(th)/(s·in²)

W/m² to cal(th)/(min·cm²)BTU(IT)/(s·ft²) to cal(th)/(min·cm²)

Quick Reference Table

W/m²	BTU(IT)/(s·ft²)
1	0.0000880551
5	0.000440275
10	0.000880551
25	0.00220138
50	0.00440275
100	0.00880551
250	0.0220138
500	0.0440275
1000	0.0880551

All Converters

Common Unit Systems