Circle Skirt Calculator

Enter your waist measurement and desired skirt length to get exact cutting dimensions, fabric yardage, and folding instructions for full, half, ¾, and quarter circle skirts.

Your Measurements

Measure where waistband will sit

From waist to desired hem

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Enter your measurements and click Calculate to get your circle skirt cutting pattern with step-by-step solution.

Complete User Guide

How Circle Skirts Work

A circle skirt is cut from a circular piece of fabric with a hole for the waist. The waist radius determines the size of the inner circle, and the outer radius includes the desired skirt length plus hem allowance. Different fractions of a circle create different levels of flare and fullness.

Rwaist = Waist / (2 × π × fraction)

fraction: 1 = full, 0.75 = ¾, 0.5 = half, 0.25 = quarter

4 Skirt Types

Full Circle (360°)

Maximum flare and twirl. Uses most fabric. Great for dance skirts and formal wear.

¾ Circle (270°)

Beautiful drape with less bulk. Requires one seam. Nice compromise between fullness and practicality.

Half Circle (180°)

Moderate flare, very wearable. Uses about half the fabric of a full circle. Perfect for everyday.

¼ Circle / A-Line (90°)

Minimal flare, classic A-line. Most fabric-efficient and easy to sew. Needs two panels.

Sewing Tips

  • Always cut on the bias (diagonal grain) for the best drape.
  • Let the skirt hang for 24 hours before hemming — bias-cut fabric stretches.
  • Use a narrow hem (rolled or baby hem) for the smoothest finish on curved edges.
  • Add 1-2 inches to length if using stretchy fabric.
  • Add a separate straight-grain waistband rather than folding the circle fabric.

Important Notes

  • Seam allowance is added to the waist circumference before calculating the radius.
  • Hem allowance is added to the skirt length (outer radius).
  • Fabric width affects panel count and cutting layout.

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