Knitting Increase Calculator

About this calculator

When a knitting pattern says to increase evenly across a row — shaping a raglan yoke, the crown of a hat, or the body of a sweater — this calculator works out the mechanics for you. It takes your current stitch count and target stitch count, finds how many increases you need (the difference), and divides the remaining stitches by the number of increases plus one to tell you exactly how many plain stitches to knit between each increase so the shaping lands symmetrically.

Knitters following (or writing) a pattern use this instead of eyeballing spacing, which is especially important for garments where uneven increases show up visibly, like the crown decreases on a top-down hat or the raglan “seams” on a sweater yoke. It removes the trial-and-error of splitting an odd stitch count across an arbitrary number of increase points.