Fabric yardage calculator

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

Your measurements

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

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

Example calculation

Fabric yardage calculator: worked out from the values already filled in the form above.

Inputs

Result

How the calculation works

Enter the finished rectangular dimensions of each piece. The calculator adds the seam allowance to the cut edges and places the pieces across the available width. Grain-locked pieces keep their orientation; unlocked pieces may rotate by 90 degrees.

The result is a cutting estimate for rectangles. It does not trace curved pattern outlines or reserve fabric for print matching, shrinkage or defects. If a piece is wider than the usable fabric, it is listed as unplaced instead of being squeezed into the diagram.

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