Power per area conversion factors

Multiply units of left column by factor to get units in top row, for example, 1 W / m2 = 0.317 Btu / hr / ft2

 

Btu / hour /
square ft

Watts /
square ft

Watts /
square inch

Watts /
square meter

Watts /
square cm

Btu / hour / square ft

1.0000E+00

2.9307E-01

2.0352E-03

3.1546E+00

3.1546E-04

Watts / square ft

3.4121E+00

1.0000E+00

6.9444E-03

1.0764E+01

1.0764E-03

Watts / square inch

4.9135E+02

1.4400E+02

1.0000E+00

1.5500E+03

1.5500E-01

Watts / square meter

3.1700E-01

9.2903E-02

6.4516E-04

1.0000E+00

1.0000E-04

Watts / square cm

3.1700E+03

9.2903E+02

6.4516E+00

1.0000E+04

1.0000E+00