How big should my crochet gauge swatch be?

Make a swatch at least 15cm x 15cm. Crochet fabric can curl or distort at the edges, so a larger swatch lets you measure the central 10cm accurately. Use the same stitch, hook, and yarn you plan to use for your project.

Does crochet stitch type affect gauge?

Yes, significantly. Double crochet (UK) / single crochet (US) produces shorter, denser rows. Treble crochet (UK) / double crochet (US) produces taller, more open rows. Each stitch type will give different row gauge even with the same hook and yarn.

Why is crochet gauge harder to match than knitting gauge?

Crochet gauge varies more between individuals because the single hook technique allows more variation in yarn wrapping tension, loop height, and insertion point. Always swatch and adjust hook size until you match the pattern gauge.

Should I block my crochet swatch before measuring?

Yes. Wash and block your swatch the same way you will care for the finished item. Crochet fabric often relaxes or changes shape after washing, especially with natural fibres. Cotton tends to grow; wool may felt if agitated.

How do I count crochet stitches and rows?

For stitches, count the V-shapes along the top of a row. For rows, count the horizontal ridges or chain spaces up the side. Place markers at the start and end of your counting area to ensure accuracy. A ruler or gauge tool helps maintain consistent measurement.

KnitCalcs

Crochet Gauge Calculator — Stitches & Rows Per 10cm

Calculate your crochet gauge from swatch measurements for any stitch type. Essential for achieving correct sizing.

Stitches Counted

Count stitches across your swatch

Swatch Width

Width of the measured area

Rows Counted

Count rows down your swatch

Swatch Height

Height of the measured area

Stitch Type

Select the stitch type used in your swatch

How We Calculate This

This calculator converts your crochet swatch measurements into standardised gauge values, just like the knitting gauge calculator but tailored for crochet stitch types.

The formula

Stitches per cm = Stitches counted / Swatch width (cm)

Stitches per 10cm = Stitches per cm x 10

Rows per cm = Rows counted / Swatch height (cm)

Stitches per inch = Stitches per cm x 2.54

Frequently Asked Questions

Related Calculators

Amigurumi Calculator

Calculate increase and decrease rounds for amigurumi spheres and shapes.

Granny Square Calculator

Calculate number of granny squares and yarn needed for a blanket or garment.

Circle Calculator

Calculate increases per round for flat crochet circles of any size.

Oval Calculator

Calculate foundation chain and increases for flat crochet ovals.

Crochet Blanket Calculator

Calculate yarn, chain count, and rows for crochet blankets.

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.