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Heat flux density converter
Heat flowing through an area, per second. 5 units, converted from one table of exact factors.
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1 watt/square meter in every other heat flux density unit
Computed by the same engine that runs the converter above, so these can never drift apart from it.
| From | Equals | Unit |
|---|---|---|
| 1 watt/square meter | 0.001 | kilowatt/square meter (kW/m²) |
| 1 watt/square meter | 0.0001 | watt/square centimeter (W/cm²) |
| 1 watt/square meter | 0.00002390057361 | calorie/second·square centimeter (cal/(s·cm²)) |
| 1 watt/square meter | 0.3169983306 | BTU/hour·square foot (Btu/(h·ft²)) |
What each unit actually is
Most converters give you a number and stop. Where a figure is exact by definition we say so, and where it is an average or shifts with conditions we say that too — that is usually the thing you needed to know.
| Unit | Symbol | What it actually is |
|---|---|---|
| watt/square meter | W/m² | SI. Full sun is roughly 1,000. |
| kilowatt/square meter | kW/m² | |
| watt/square centimeter | W/cm² | |
| calorie/second·square centimeter | cal/(s·cm²) | |
| BTU/hour·square foot | Btu/(h·ft²) |
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