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Even increase and decrease calculator

Tell it how many stitches are on the needle and how many to increase or decrease. It gives the most even spacing across the row.

How it works

Each increase (kfb or m1) adds one stitch and is worked in one stitch of the row. Each decrease (k2tog) uses two stitches to make one. The calculator places the increases or decreases so the gaps between them differ by at most one stitch, and repeats are collapsed, for example (k4, inc) × 11.

Which increase and decrease?

The calculator uses inc for any increase and k2tog for decreases. Swap in your pattern's stitches: kfb, m1l, ssk, k2tog. For mirrored shaping, alternate left- and right-leaning versions.

Frequently asked questions

Why can't I decrease more than half the stitches?

Each decrease uses two stitches, so you cannot do more than half the stitch count in one row.

Is the first stitch ever an increase?

The calculator spreads the shaping across the row. Most patterns start and end the row with plain stitches, so adjust the ends if your pattern says so.

Last updated 7 November 2026. Stitchlight is an independent app; this page is written for readers, not for search engines. Spotted a mistake? Tell us.

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