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Roman Blind Calculator — Fabric for Roman Blinds
Calculate fabric, lining, dowels, rings and cord for roman blinds.
Recommended for all roman blinds
How We Calculate This
Roman Blind Fabric Calculation
Cut Width = Blind Width + (Side Hem × 2)
Face Cut Drop = Blind Drop + Bottom Hem + Heading
Roman blinds hang flat (no fullness), so if the cut width is wider than your fabric roll the calculator joins extra widths — Widths Joined = round up (Cut Width ÷ Fabric Width) — and multiplies the metres accordingly.
Traditional rod pockets are made from the lining, not the face fabric, so the face is cut as a flat panel and the lining is cut longer than the face by the rod-pocket allowance (about 4–5 cm per rod). That is why the lining requirement can exceed the face-fabric requirement. The fold sizes follow the standard rule of equal full folds plus a half-depth bottom fold (Full Fold = Blind Drop ÷ (Folds − ½)).
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify quantities before cutting or purchasing fabric.