๐ Household
Window Blind Size Calculator
Inside-mounted blinds fit within the window recess and are sized to the narrowest point of the opening. Outside-mounted blinds cover the whole opening plus an overlap of at least two inches on each side to control light leaks.
How it works
Window width
Window height
Mounting
Overlap each side
Recess depth (inside mount)
Blind width to order
Blind drop to order
Blind width to order
Blind drop to order
Enough recess depth?
Frequently asked questions
How do I use the Window Blind Size Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.