Enter your window, choose the look you want and get the pole length, curtain drop, curtain width and the ready-made size to buy.
Pole or track length
Curtain drop (length)
Width of each curtain
Pole height from floor
What to buy
Rules used: the pole extends past the frame on each side so open curtains clear the glass; standard fullness is twice the pole width; sill-length curtains end about 1 cm above the sill, below-sill about 15 cm below it and floor-length about 1 cm above the floor. Ready-made sizes vary by shop, so check the size label before you buy. Results are planning estimates.