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Redmoon Calculators
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Cosplay Fabric & Material Estimator

Calculatrice gratuite de métrage de tissu pour cosplay.

Quand l’utiliser

Use before ordering fabric for a new cosplay piece. Always order a bit more than the estimate suggests — cuts and seams eat fabric.

Comparaison

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.

Enter your values below. Calculations run locally as you type.

Comment ça marche

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.

FAQ

How accurate are these estimates?

They're approximations using simplified geometry plus a 10% safety margin. Always buy a bit more for mistakes.

Does it work for EVA foam?

Yes — set the bolt width to your standard foam sheet (often 60 cm × 100 cm).

Why does bolt width change how much fabric I need?

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.

Should I add extra fabric beyond the estimate?

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.

Exemple concret

Entrée

Full circle cape, 170 cm height, 60-inch (152 cm) bolt.

Sortie

~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.

Pièges courants

  • Geometric estimates only — complex pattern pieces need a real pattern.
  • Bias-cut cape uses more fabric than a straight-grain cut.
  • EVA foam thickness and waste from carving aren't modeled.

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