Fabric shrinkage allowance
Divide each finished dimension by its retained fraction.
Sewing, knitting and textile crafts ↗THE SUMFIZZ LIBRARY
Sewing, knitting and textile crafts calculators
Explore 15 free tools for sewing, knitting and textile crafts. Find fabric shrinkage allowance, pattern repeat fabric allowance, elastic waistband cut and more. Each calculator explains its inputs and method, with examples you can try using your own numbers.
THE SUMFIZZ LIBRARY
What are we working out?
Pattern repeat fabric allowance
Start the first panel at the chosen motif.
Sewing, knitting and textile crafts ↗Elastic waistband cut
The reduction is your chosen fit allowance, not a universal elastic stretch recommendation.
Sewing, knitting and textile crafts ↗Buttonhole placement
Positions refer to buttonhole centres measured from the placket top.
Sewing, knitting and textile crafts ↗Knitting gauge conversion
Preserves dimensions under the measured gauge.
Sewing, knitting and textile crafts ↗Yarn substitution quantity
Matches stated yarn length and rounds purchases to complete skeins.
Sewing, knitting and textile crafts ↗Cross-stitch fabric size
Use 1 for stitching over one Aida block; use 2 for stitching over two threads on an evenweave counted in threads per inch.
Sewing, knitting and textile crafts ↗Embroidery thread estimate
Scales a measured sample using the same strand count and stitch style.
Sewing, knitting and textile crafts ↗Curtain fabric planner
Identical panels split the window equally.
Sewing, knitting and textile crafts ↗Quilt backing yardage
Compares vertical and horizontal straight-strip backing layouts and chooses the one requiring less fabric length; ties choose vertical.
Sewing, knitting and textile crafts ↗Quilt binding strips
Cut straight strips across the usable fabric width.
Sewing, knitting and textile crafts ↗Quilt block layout
Uses finished dimensions.
Sewing, knitting and textile crafts ↗Pleat spacing planner
Evenly distributes identical knife pleats between two equal unpleated margins.
Sewing, knitting and textile crafts ↗Ruffle gathering planner
Equal-width straight strips are joined end to end.
Sewing, knitting and textile crafts ↗Weaving warp length
Take-up and shrinkage are successive length losses, so each is reversed by division.
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