9 units · base unit W/m² · M T⁻³
Heat flux density converter
Convert W/m², BTU/(h·ft²), kcal/(h·m²) and langleys.
0.001kW/m²
As a fraction: 1/1000
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1 W/m² = 0.001 kW/m²
Show this value in all 9 heat flux density units
- Watt per square meters W/m² 1
- Kilowatt per square meters kW/m² 0.001
- Watt per square centimeters W/cm² 0.0001
- BTU per hour square foots BTU/(h·ft²) 0.316 998 330 628
- BTU per second square foots BTU/(s·ft²) 0.000 088 055 091 841 2
- Kilocalorie per hour square meters kcal/(h·m²) 0.860 420 650 096
- Calorie per second square centimeters cal/(s·cm²) 0.000 023 900 573 613 8
- Langley per minutes Ly/min 0.001 434 034 416 83
- Solar constants S₀ 0.000 734 753 857 458
Every row is Watt per square meter (W/m²) converted through the watt per square meter, in exact rational arithmetic.
Common heat flux density conversions
- W/m² → kW/m²
- W/m² → BTU/(h·ft²)
- W/m² → kcal/(h·m²)
- kW/m² → W/m²
- kW/m² → BTU/(h·ft²)
- kW/m² → kcal/(h·m²)
- BTU/(h·ft²) → W/m²
- BTU/(h·ft²) → kW/m²
- BTU/(h·ft²) → kcal/(h·m²)
- kcal/(h·m²) → W/m²
- kcal/(h·m²) → kW/m²
- kcal/(h·m²) → BTU/(h·ft²)
All heat flux density units
Each unit expressed in watt per square meters (W/m²), the unit everything in this category converts through.
| Unit | Symbol | System | Value in W/m² |
|---|---|---|---|
| Watt per square meter | W/m² | SI | 1 |
| Kilowatt per square meter | kW/m² | SI | 1000 |
| Watt per square centimeter | W/cm² | cgs | 10000 |
| BTU per hour square foot | BTU/(h·ft²) | imperial | 3.15459074506 |
| BTU per second square foot | BTU/(s·ft²) | imperial | 11356.5266822 |
| Kilocalorie per hour square meter | kcal/(h·m²) | metric | 1.16222222222 |
| Calorie per second square centimeter | cal/(s·cm²) | cgs | 41840 |
| Langley per minute | Ly/min | other | 697.333333333 |
| Solar constant | S₀ | other | 1361 |
About heat flux density units
Convert W/m², BTU/(h·ft²), kcal/(h·m²) and langleys.
Dimensional formula: M T⁻³. Every conversion on this page goes through the watt per square meter, using exact fractions rather than decimal approximations. Read how that works →