How do I calculate cast-on stitches?

Multiply your desired width in cm by your stitches per cm (gauge divided by 10). Then adjust for pattern repeats by rounding to the nearest multiple of your repeat count, and add edge stitches if knitting flat.

What are edge stitches?

Edge stitches (selvedge stitches) are extra stitches at each side that create a neat edge or are used in seaming. Typically 1-2 stitches per side. When knitting in the round, you do not need edge stitches.

How do I adjust for pattern repeats?

If your stitch pattern repeats over a set number of stitches (e.g. a 4-stitch rib or 8-stitch cable), your cast-on count must be a multiple of that repeat plus any edge stitches. This calculator rounds to the nearest repeat automatically.

Should I cast on differently for knitting in the round?

When knitting in the round, you do not need selvedge/edge stitches since there are no side seams. Your cast-on count should be a multiple of your pattern repeat without extra edge stitches.

KnitCalcs

Cast On Calculator — Stitches for Any Width

Calculate the exact number of stitches to cast on for your desired width, accounting for pattern repeats and edge stitches.

Target Width

Stitch Gauge (per 10cm)

Pattern Repeat

Enter 1 for no repeat

Edge Stitches (total)

Both sides combined

Knitting in the round

No edge stitches needed when knitting in the round

How We Calculate This

This calculator multiplies your stitch gauge by target width, then adjusts for pattern repeats and edge stitches.

The formula

Raw stitches = Target width (cm) x (Stitch gauge / 10)

Adjusted = Nearest multiple of pattern repeat + Edge stitches

Frequently Asked Questions

Related Calculators

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Decrease Calculator

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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.