Free Sewing Calculators
Free sewing calculators for fabric yardage, quilting, pattern sizing, curtains, home sewing and more. Fast, accurate, no signup required.
Fabric & Yardage
Calculate fabric quantities, yardage, width conversions and shrinkage for any sewing project.
14 calculators →
Pattern & Sizing
Pattern grading, ease calculations, and body measurement adjustments for perfect fit.
10 calculators →
Seams & Construction
Seam allowances, darts, pleats, gathers, hems and construction detail calculations.
11 calculators →
Quilting
Quilt sizing, binding, backing, blocks, sashing, borders and batting calculations.
12 calculators →
Curtains & Blinds
Curtain fabric, lining, tracks, roman blinds and window treatment calculations.
10 calculators →
Home Sewing
Cushions, duvet covers, tablecloths, napkins and home furnishing calculations.
8 calculators →
Embroidery
Thread quantities, fabric calculations, hoop sizing and stabiliser requirements.
8 calculators →
Notions & Supplies
Buttons, elastic, ribbon, snaps, boning and other sewing notions calculations.
8 calculators →
Alterations
Hemming, taking in, letting out, tapering and garment alteration calculations.
10 calculators →
Sewing Maths
Stitch calculations, thread consumption, fabric costs and geometric pattern maths.
8 calculators →
Layout
Optimise fabric cutting layouts, minimise waste and plan pattern piece placement.
1 calculators →
Garment Details
Buttonholes, closures, trims and garment detail calculations.
1 calculators →
Fabric
Fabric properties, shrinkage prediction and fiber content calculations.
2 calculators →
Garments
Zip lengths, closures and garment construction detail calculations.
1 calculators →
Garment Construction
Waistbands, closures and garment construction detail calculations.
4 calculators →
Pattern Making
Dart manipulation, bodice block and pattern construction calculators.
1 calculators →
Reference
Useful reference guides and charts for sewing, fabrics and garment construction.
4 guides →
SewCalcs — Free Sewing Calculators
SewCalcs offers 109+ free calculators across 16 categories. Every tool is fast, accurate, and requires no signup. Just enter your values and get instant results.
Browse all 109+ calculators or search above to find exactly what you need.