Decrease Calculator — Evenly Spaced Decreases
Calculate how to space decreases evenly across a row for smooth shaping.
How We Calculate This
This calculator spaces decreases evenly across a flat row using the centred method, so no decrease lands at the selvedge.
The formula
Segments = Number of decreases + 1
Stitches per segment = (Current stitches − decreases × decrease width) / Segments
Each decrease (k2tog consumes 2 stitches) is worked at the end of an interior segment, and any leftover stitches are split evenly between the leading and trailing segments. Working in the round? Use Current stitches / Number of decreases instead, since there is no edge to protect.
Frequently Asked Questions
Related Calculators
Cast On Calculator
Calculate the number of stitches to cast on for a given width and gauge.
Increase Calculator
Calculate evenly spaced increases across a row for shaping.
Stitch Pattern Repeat Calculator
Adjust stitch count to fit a pattern repeat plus edge stitches.
Cable Stitch Calculator
Calculate yarn usage and width changes for cable patterns.
Lace Pattern Calculator
Calculate stitch counts for lace patterns with yarn overs and decreases.
Last updated: February 2026
All calculations are estimates based on standard yarn weights and gauge. Results may vary with individual tension, yarn brand, and needle size.