Heat per Unit Area (HPA) unitsUse the following table to convert among various units. To convert from the units in a column to the units in a row, divide by the conversion factor. To convert from the units in a row to the units in a column, multiply by the conversion factor. Four significant figures are shown. Only half the table is provided to avoid round-off errors. |
|
J/ft2 |
kJ/m2 |
BTU/ft2 |
kcal/m2 |
cal/m2 |
J/ft2 |
1 |
|
|
|
|
kJ/m2 |
92.90 |
1 |
|
|
|
BTU/ft2 |
1055 |
11.35 |
1 |
|
|
kcal/m2 |
388.9 |
4.183 |
0.3686 |
1 |
|
cal/cm2 |
3889 |
41.83 |
3.686 |
10 |
1 |
Examples: multiply 2000 BTU/ft2 by 11.35 to get 22,700 kJ/m2; divide 20,000 kJ/m2 by 11.35 to get 1762 BTU/ft2.
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