Cutfit

Multi-fabric sewing calculator

Plan the main fabric, lining and interfacing separately. Assign every piece to its fabric and review the yardage and unplaced pieces for each one.

Decimals and fractions such as 1.5, 1½ or 1 1/2 are accepted. Do not use thousands separators.

Your fabrics

Use up to three fabrics. Each fabric keeps its own width and cutting settings.

Your pieces

For cut-on-fold pieces, enter the half-pattern width. The folded edge receives no seam allowance.

Example calculation

Multi-fabric sewing calculator: worked out from the values already filled in the form above.

Inputs

Result

How the calculation works

Assign each rectangle to its own fabric: main fabric, lining or interfacing. The usable width is that fabric’s width minus its total selvage loss. Folding, grain direction and seam allowances are applied inside that group; pieces never move to another fabric just because it has room.

For example, two 700 × 500 mm pieces fit side by side on a 1400 mm main fabric with no seam or edge loss, using 500 mm of length. The same two grain-locked pieces on an 1100 mm lining need 1000 mm of length. Buy 0.5 m of the main fabric and 1 m of the lining; a combined length cannot replace either requirement.

Related tools

01

Fabric yardage calculator

Lay out rectangular pieces across your fabric width, with grain direction and seam allowance.

02

Compare fabric widths

Change the usable fabric width and compare the length needed for the same pieces.

03

Folded fabric planning

Compare single-layer and folded cutting. Keep the grain and cut-on-fold requirements explicit.