

| Glazing Area (m²): { Ag } | |
| Frame Area (m²): { Af } | |
| Total Window Area (m²): { Acw } | |
| Heat Transmittance for IGU (W/m²K): { Ug } |
|
| Heat Transmittance for Frames (W/m²K): { Uf } |
|
| Result: (W/m²K) {Ucw} |
Disclaimer; This calculator can not be used for constructions and official use, this is a simple and informative calculator, please apply FMT for detailed and official calculations.











