🪡 Machine & Thread Calculators

Thread consumption, bobbin, needle size, stitch length, embroidery, curtain, and pillow calculators.

Calculate how much thread you need for a sewing project based on total seam length and stitch type.

Calculate how many pre-wound or hand-wound bobbins you need for your sewing project.

Find the recommended sewing machine needle size and type based on your fabric.

Calculate stitches per inch at different stitch length settings and find the right setting for your project.

Calculate embroidery thread needed based on design area, stitch density, and number of colors.

Calculate fabric yardage for curtains based on window measurements, fullness, and hem allowances.

Calculate fabric needed for throw pillows including seam allowances and closure type.

Calculate total cast-on stitches, rows, and yarn yardage from your knitting gauge swatch measurements and desired project dimensions.

Find the recommended crochet hook size based on yarn weight, desired gauge, and drape preference. Get hook size in mm and US letter.