How many extra stitches do pleats need?

Knife pleats and box pleats need 3x the pleat width in stitches (the pleat uses 2 extra layers of fabric). Accordion pleats need 2x. For example, a 2cm knife pleat that spans 5 stitches needs 15 stitches total (10 extra).

What types of pleats can I knit?

Knife pleats fold in one direction. Box pleats fold symmetrically outward from centre. Inverted box pleats fold inward. Accordion pleats alternate direction. Each creates a different look and uses different amounts of extra fabric.

How do I form pleats in knitting?

Knit the full width including pleat fabric. On the fold row, fold the pleat and knit through all layers to join. Use stitch markers to mark fold lines. Some knitters prefer to fold and pin before joining.

Do pleats use more yarn?

Yes, significantly. Knife and box pleats use approximately 3x the yarn for the pleated section. This is because each pleat creates 3 layers of fabric. Plan yarn quantities accordingly.

Where are pleats used in knitting?

Pleats appear in skirts, kilts, cuffs, and decorative panels. A pleated skirt might have knife pleats all around. A kilt features box pleats at the back. Cuffs may use small accordion pleats for a gathered look.

KnitCalcs

Pleat Calculator — Extra Stitches for Knitted Pleats

Calculate the additional stitches needed for knitted pleats of various types.

Finished Width

Width after pleats are folded

Pleat Width

Width of each pleat when folded

Stitch Gauge (per 10cm)

Pleat Type

How We Calculate This

This calculator determines how many extra stitches you need to create pleats, based on the pleat type and finished width.

Pleat multipliers

Knife pleat: 3x pleat width (2 extra layers)
Box pleat: 3x pleat width (2 extra layers)
Inverted box pleat: 3x pleat width
Accordion pleat: 2x pleat width (1 extra layer)

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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.