About

What this site provides

A simple curtain size estimator for your home.

This site helps people measuring a window estimate the combined flat curtain width and a reference length. Enter window width and height, choose Light (1.2×), Standard (1.5×) or Full (2×), then compare the result with the sizes of the curtains you plan to use.

Convert each input to centimeters using 1 in = 2.54 cm. Multiply window width by the chosen fullness factor (1.2, 1.5 or 2). Reference length equals window height. Round only when displaying.

Results describe total flat fabric width and a reference length based on window height. They exclude hems, headers, floor clearance and shrinkage. Measure your installation before ordering.