Sewing & Fabric API
Sewing and fabric-estimating maths as an API, computed locally and deterministically — the yardage numbers a sewist, quilter or curtain-maker works a project out with. The yardage endpoint lays cut pieces onto a bolt: pieces per row = floor(fabric width ÷ piece width), rows = ceil(quantity ÷ per row), and the fabric length = rows × piece height plus a waste allowance — six 18×22-inch pieces from 44-inch quilting cotton need about 2 yards. The curtain endpoint sizes drapery for fullness: drops = ceil(window width × fullness ÷ fabric width), where 2× is a standard gather and 2.5–3× is luxe, and each drop is the finished length plus top and bottom hems (rounded up to the pattern repeat) — a 60-inch window at 2.5× fullness on 54-inch fabric takes three drops and about 8.3 yards. The binding endpoint sizes quilt binding: length = perimeter + overlap for corners and joins, strips = ceil(length ÷ fabric width) cut at the strip width. Everything is computed locally and deterministically, so it is instant and private. Ideal for sewing, quilting, home-decor, upholstery and craft app developers, fabric-calculator and project-planning tools, and sewing education. Pure local computation — no key, no third-party service, instant. Imperial inches in; yards and metres out. Live, nothing stored. 3 compute endpoints. Add pattern-repeat allowance for prints; a planning aid.
api.oanor.com/sewing-api
