Specialty Garment Tools
Bras, corsets, and swimwear have unique construction math that general sewing tools don't cover. These calculators handle the specialized measurements and calculations each garment type requires.
Bra Sewing Calculator
Cup size, band size, underwire dimensions, sister sizing, and band cut length for sewing bras.
Corset Calculator
Waist reduction, rib/hip spring, panel widths, boning count, and eyelet spacing.
Swimwear Calculator
Negative ease by zone, swim elastic cut lengths, lining, and fabric estimates by style.
Why specialty garments need their own tools
A bra requires precise cup and band calculations that depend on sister sizing, underwire dimensions, and elastic tension. A corset needs waist reduction math, rib and hip spring, panel distribution, and boning spacing. Swimwear uses negative ease — the garment is deliberately smaller than the body.
These calculations don't appear in standard sewing references. Each tool walks you through the measurements, does the math, and gives you cut-ready numbers.