Curtain Size Calculator

Fill in your window details and click Calculate

Free Tool
Window Width
Measure the window frame opening, not the wall
inches
Floor to Ceiling Height
Measure from finished floor to ceiling (or top of window trim if mounting inside)
inches
Rod Position
How high above the window frame will the rod be mounted?
Curtain Drop Style
Heading Type
Affects the fullness multiplier and how panels are sized
Rod Extension Each Side
How far the rod extends past the window frame on each side
Number of Windows

Enter your window measurements and click Calculate to see your curtain sizes

Curtain Drop (Length)
—inches
Panels & Width
Full Breakdown
Buying & Hanging Tips