Circle Skirt Calculator

Your details

Full circle gives the most flare. Half and quarter circles use less fabric. 3/4 sits between full and half.
Measure around your natural waistline, where you want the waistband to sit. Do not add ease here - the calculator handles it.
cm
The finished length from the waistband seam to the hem. Mini is roughly 40-45 cm (16-18 in), knee is 55-60 cm (22-24 in), midi is 75-90 cm (30-35 in), maxi is 100+ cm (40+ in).
cm
Extra room added to the waist so the skirt is comfortable to wear. 2 cm (0.75 in) is standard for a fitted waist.
cm
Added to the waist edge for joining the waistband. 1.5 cm (0.625 in) is the standard dressmaking allowance.
cm
Added to the outer edge for turning up the hem. 2 cm (0.75 in) suits a standard double-fold hem; 5 cm (2 in) for a deep hem.
cm
If you are cutting a separate waistband strip, enter its finished width here to get the strip dimensions. Leave at 0 to skip.
cm
Waist radius (inner arc)
11.5

Radius from the pivot point to the waist seamline - the circle you draw first when cutting.

Cutting radius (outer edge)73.5
Fabric square needed147
Cut waist circumference72
Hem circumference461.6

Full circle (360 deg): waist radius 11.5 cm, cutting radius 73.5 cm.

  • Set your compass or use a string to 11.5 cm from the corner pivot and draw the waist arc.
  • Extend to 73.5 cm and draw the hem arc - that is the full pattern piece.
  • You need a square of fabric at least 147 x 147 cm - fold the fabric in four to cut efficiently.
  • The finished hem will measure about 462 cm around - plan trim, lace, or lining accordingly.

Next stepAfter cutting, stay-stitch the waist arc 0.5 cm inside the seamline before handling to prevent the bias edges from stretching.

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