Circle Skirt Calculator
By Waist Measurement
Calculate circle skirt radius and fabric from waist measurement
in
in
Fabric Width Check
Check if your fabric width is sufficient for your circle skirt
in
in
Formula
Waist radius = Waist / (2 × π × circle fraction) | Outer radius = Waist radius + Skirt length + Hem allowance | Fabric ≈ 2 × Outer radius for each half
Frequently Asked Questions
How do I calculate the radius for a circle skirt?
Divide your waist measurement by (2 × pi × circle fraction). For a full circle: waist / 6.28. For a half circle: waist / 3.14. For a quarter circle: waist / 1.57. This gives you the waist cutting radius.
How much fabric do I need for a full circle skirt?
A full circle skirt typically needs 4-6 yards of 45-inch fabric, depending on your waist size and desired length. Shorter skirts or smaller waists may need less. The calculator gives exact amounts.
Why does my circle skirt hang unevenly?
Circle skirts stretch on the bias grain. After cutting, hang the skirt for 24-48 hours, then trim the hemline evenly. This is normal and expected with any circular cut.
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