Curtain Fabric Calculator

Fullness is how much extra fabric width is gathered into the finished curtain — more fullness means fuller, richer folds. Eyelet and tab-top headings typically use 1.5×, pencil pleat around 2×, and pinch pleat 2.5× or more.

Enter the repeat length in inches and the calculator rounds each cut up to the next full repeat, so the pattern lines up across widths instead of looking mismatched.

It's a close estimate based on standard formulas. Exact yardage can vary with your tailor's stitching method, seam allowances, and how fabric is joined — confirm the final amount with whoever is making the curtains before cutting.

Enter the total width you need to cover across both panels combined — the calculator works out how many fabric-roll widths that requires and splits them into panels during stitching.

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