Free cosplay fabric yardage calculator. Estimate cloth or EVA foam needed for capes, pleated skirts, bodices, pauldrons, and gauntlets from simple body measurements and bolt-width choice. Built-in 10% safety margin.
Use before ordering fabric for a new cosplay piece. Always order a bit more than the estimate suggests — cuts and seams eat fabric.
Pattern instructions give exact yardage per pattern. This is for the planning stage — when you're deciding which fabric to buy, not how to cut it.
Each garment preset uses simplified geometric estimates — full-circle cape ≈ π × radius², bodice = two flat panels, etc.
Required length is the safe area (estimate × 1.1 for waste) divided by your bolt width.
Always buy a bit more than the estimate — fabric mistakes compound quickly.
They're approximations using simplified geometry plus a 10% safety margin. Always buy a bit more for mistakes.
Yes — set the bolt width to your standard foam sheet (often 60 cm × 100 cm).
Wider bolts let more pattern pieces sit side by side, so a piece that needs two lengths on a 45-inch bolt may fit in one length on a 60-inch bolt. Always check the bolt width before buying so you do not overpay for yardage.
The built-in 10% margin covers seam allowances and small mistakes, but add more if your fabric has a directional nap or a pattern that must be matched at the seams. Plaids, stripes, and pile fabrics like velvet can require 15 to 25% extra.
Input
Full circle cape, 170 cm height, 60-inch (152 cm) bolt.
Output
~5 meters needed.
A full-circle cape with a 170 cm radius needs π × 170² ≈ 9 m² of fabric. At 1.52 m bolt width plus 10% safety margin, that's ~6.5 m of length — round to 7 m to be safe.
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