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ExactUnit

Heat Flux Density converter

Convert heat-transfer power per unit area.

Unit converter
Edit either value
1 W/m² = 0.001 kW/m²

Results rounded to 12 significant digits.

All heat flux density conversions

Choose your starting unit. Each direction has its own calculator, formula, and examples.

Convert Watts per square meter

Convert Kilowatts per square meter

Convert Watts per square centimeter

Convert Btu IT per hour square foot

Using heat flux density measurements

Heat flux density is power per area, W/m². A positive or negative sign can indicate direction under the chosen sign convention; this tool preserves that sign. Carry the same physical assumptions into subsequent physics calculations.

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Heat Flux DensityWatts per square meter to kilowatts per square meterHeat Flux DensityWatts per square meter to watts per square centimeterHeat Flux DensityWatts per square meter to Btu IT per hour square footHeat Flux DensityKilowatts per square meter to watts per square meterHeat Flux DensityKilowatts per square meter to watts per square centimeterHeat Flux DensityKilowatts per square meter to Btu IT per hour square foot