Project planning

Crochet tools and calculators

Bring your pattern and a measured swatch. Keep the numbers in one place.

Crochet hook size converter

Find millimeters, US labels and historic UK sizes. Steel hooks stay separate.

Check your tension, estimate finished size and plan stitch repeats.

Turn pattern yardage or a weighed swatch into a ball count.

Compare fiber, gauge, care and yardage before changing yarn.