How much fabric do I need for a circle skirt?

Fold the fabric into quarters. You need a square with sides equal to twice your outer radius. For a 28-inch waist and 22-inch length, that's typically about 2 yards of 60-inch wide fabric.

What is the formula for a circle skirt?

Inner radius = waist measurement ÷ (2 × π). Add your desired length to get the outer radius. Draw both circles from the corner of folded fabric and cut.

Circle Skirt Calculator

Calculate the inner radius, outer radius, and total fabric yardage needed to sew a perfect circle skirt. Enter your waist measurement and desired skirt length.

Complete User Guide

Enter your waist circumference, desired skirt length, and seam allowance (default 5/8 inch). The calculator gives you the exact inner and outer radius to draw on your fabric, plus total yardage needed.

The Mathematical Formula

Inner Radius = Waist ÷ (2π) + Seam | Outer Radius = Inner + Length + Seam | Fabric = (Outer × 2)²

The inner radius (waist circle) = waist / (2π) + seam allowance. The outer radius = inner radius + skirt length + seam allowance. Cut a square of fabric equal to (outer radius × 2) on each side, fold in quarters, and cut both arcs.

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