Craft Tools

Enter finished strand length, clasp size, and up to four bead types to calculate the exact bead count per color with a strand preview.

Convert crochet hook sizes between US letters and numbers, UK/Canada numbering and the metric mm scale. Pick a size in any system to see every equivalent, the recommended yarn weight and a steel thread-hook table.

Enter stitch count, Aida count, strands and density to get thread length per stitch, total length and skeins to buy, including a waste buffer.

Enter pattern stitches, fabric type and count, stitch-over and a framing margin to get finished size in inches, centimetres and millimetres.

Estimate how much embroidery floss you need by stitch type: satin fill, backstitch, stem, chain outlines and French knots. Get total length in metres and yards, the skeins to buy and how many working cuts to prepare.

Estimate yardage from piece dimensions, quantity and fabric width. Include seam allowance, directional prints and extra fabric, then view a cutting diagram.

Convert knitting needle sizes across US, UK/Canada, Japanese and metric systems. Enter a size in any system to see every equivalent, a to-scale thickness diagram, the closest match where none is exact and a recommended yarn weight.

Enter gauge plus finished width and length. See cast-on stitches, total rows, and a yarn estimate for a sweater, scarf, blanket, or rectangle.

Work out the origami paper size you need for a finished model size. Pick a classic model - crane, masu box, lily, frog and more - or calibrate from your own test fold, then get the exact square to cut and the closest standard sizes.

Account for clay shrinkage when sizing pottery. Calculate the fired size of a wet piece, work back from a target fired size, or measure your clay body's real shrinkage from a test tile, with earthenware, stoneware and porcelain presets.

Work out how much binding and fabric a quilt needs. Enter the quilt size, strip width and fabric width to get total binding length with corner allowance, strips to cut and yardage to buy, for straight-grain or bias, single or double fold.

Calculate how much yarn (yards/meters) you need for sweaters, blankets, scarves, and other knitting or crochet projects. Estimates based on yarn weight, gauge, project size, and stitch pattern.