Knitting tools

Free tools that help you knit with the yarn you have. Calculate yarn amounts, compare gauge, space increases and decreases, and find substitute yarn.

Yarn usage calculator

Calculate how much yarn you need when you switch to a different yarn.
Gauge calculator

Compare your gauge with the pattern gauge, and see what the difference means.
Increase and decrease stitch calculator

Spread increases and decreases evenly across one or more rows or rounds.
Find substitute yarn

Find yarn that matches yours on fibre, spin, construction and gauge.