When measuring for curtains please measure the width of the pole/track and not the width of the window and measure the drop from the pole/rail to the floor and not the top of the window to the floor.
We have three quick automatic searches you can use to save time trawling through every pair on the site and all are based on the drop required. Click on the following links for drops between: -
1 - Long(ish) Less than 226 cms (89 ins)
2 - Longer 227 & 252 cms (90 to 99 ins)
3- Longest 254 cms (100 ins) & over