Curtain & Home Sewing Calculators

Curtain tools separate three jobs: how many fabric widths or panels you need, how much flat fabric a fullness ratio or pleat take-up requires, and how much cloth to buy once drop and repeat are included.

Fullness presets are starting choices from 1.5× to 3×. A named heading style is not locked to one ratio. Cushion calculations stay limited to a simple cover or a simple box cushion.

Cushion Fabric Calculator

Estimate fabric for a simple two-face cushion or a simple box cushion with one boxing strip.

Curtain Fabric Calculator

Count equal curtain widths, add drop allowances and a vertical repeat, then round the purchase length up.

Curtain Width Calculator

Find the flat width and the number of equal panels or fabric widths, without calculating drop or yardage.

Pleat and Fullness Calculator

Convert a finished coverage width into flat fabric with either a fullness ratio or an explicit pleat take-up.