About this tool
Increase / Decrease Evenly Calculator is a free, in-browser tool that solves the fiddliest line in a knitting pattern: "increase (or decrease) N stitches evenly across the row." Enter your current stitch count and the target count, and it writes out the exact row instruction — how many stitches to work between each shaping point and how to spread any leftover. Everything is computed locally; nothing is uploaded.
The method finds the number of shaping points as the difference between the two counts, then divides the current stitches into that many groups. The base group size is the whole-number quotient, and the remainder is spread so that some groups hold one extra stitch, keeping the spacing as even as possible. For a decrease it turns each group into "knit a few, then k2tog"; for an increase into "knit a few, then make one (M1)." Decreasing 10 stitches evenly across 60, for instance, gives 60 ÷ 10 = groups of 6, so you work "[K4, k2tog] 10 times" to finish with 50.
Use it for yoke shaping, cuff-to-body transitions and any "space evenly" instruction. The pattern shown works cleanly in the round; for a flat row you can shift the first and last shaping point slightly inward so they do not fall on the very edges of the piece.