Crafts & sewing calculators

Enter your project measurements and strip width to plan a continuous-bias starting square, check it against your fabric width, and see whether a scrap square is large enough.

Enter the finished length, gather ratio, ruffle depth, fabric width, and seam allowance to estimate both the cut plan and the yardage to buy.

Enter the pattern gauge, your blocked swatch gauge, and the stitch and row counts from the section you want to convert. The calculator scales both directions, rounds to the pattern repeats you enter, and shows how far the rounded result moves from the original dimensions.

Enter the finished block unit, side triangle count, fabric width, and cutting buffer to size grain-safe side and corner setting triangles for an on-point quilt.

Measure a stitched sample, enter the straightened thread lengths you removed, and scale that measured consumption to a garment run. The calculator separates needle, bobbin, looper, and cover thread before adding waste, cones, and cost.

Use a timed spinning sample to estimate the twist you are actually inserting. Then compare that sample with the drafting pace or wheel speed needed to hit a target TPI.

Enter the yarn you have set aside for warp and weft, then add the sett, beat, shrinkage, waste, sampling, and fringe assumptions. The calculator estimates the maximum finished length and names the yarn supply that limits the project.

Enter the sett named in the draft, the reed you have, and the width you plan to sley. The calculator returns an evenly distributed denting repeat and extends it to the exact number of warp ends in the project.

Enter the finished size, sett, take-up, shrinkage, draw-in, loom waste, and package lengths. The calculator works backward to estimate warp and weft yarn before you wind the warp.

Use the pattern’s original yarn, your proposed replacement, and any usable stash to estimate the number of whole skeins to buy. The comparison also puts both labels on a length-per-50 g basis and shows the gauge change from your swatch.