Privacy Policy

Last updated: April 14, 2026

Information We Collect

We use Google Analytics to understand how visitors use our calculator. This includes:

  • Pages you visit
  • Time spent on the site
  • Browser and device information
  • General location (city/country level)

How We Use Information

We use analytics data solely to improve the calculator and understand which features are most helpful. We do not collect personal information, sell data, or use tracking for advertising.

Cookies

We use Google Analytics cookies to track usage. You can disable cookies in your browser settings without affecting the calculator's functionality.

Data Storage

All calculations are performed in your browser. We do not store or transmit your costume dimensions or calculation results to our servers.

Third-Party Services

We use Google Analytics, which has its own privacy policy. You can review it at policies.google.com/privacy.

Contact

If you have questions about this privacy policy, please contact us through our website.

Disclaimer: These tools are planning aids. Always verify measurements, print scale, and material quantities before cutting fabric or purchasing specialty supplies.

CostumeCalc

A deeper toolkit for costume planning

Use the calculators together: estimate materials, size patterns, plan seam and binding details, then price the whole build before you shop.

Fabric & Sewing

Plan yardage, garment math, cutting dimensions, and finishing details before you buy or cut.

Pattern & Fit

Resize templates and fit components more confidently with quick print and measurement math.

Armor & Props

Estimate foam and thermoplastic materials for armor shells, detail layers, and large prop builds.

Planning & Budget

Turn material estimates into real purchase plans so your build stays affordable and finishable.

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Built for cosplayers, costume makers, theater builds, and practical sewing projects.