SMALL TOOLS FOR YOUR NEXT STITCH
Free crochet calculators and pattern math tools
Plan dimensions, work through stitch changes, and measure your yarn. Take a result into the Yarnshape studio when you are ready.
Every tool is completely free and noncommercial. No account, ads, paid upgrades or tracking scripts. Your inputs stay in your browser.
Crochet panel sizing calculator
Turn target dimensions and measured gauge into full repeats, edge stitches, rows and a starting chain.
Open calculator →Even increase and decrease calculator
Place single-crochet increases or pairwise decreases while accounting for every starting stitch.
Open calculator →Crochet gauge and size calculator
See the dimensions a fixed stitch count will produce at your measured gauge.
Open calculator →Measured-swatch yarn calculator
Estimate yarn for a flat rectangle from actual sample consumption, with a separate allowance and optional whole-skein count.
Open calculator →Partial-skein yarn calculator
Convert the weight of leftover yarn to an estimated length using its original label.
Open calculator →Single-crochet round math checker
Review consumed stitches and produced stitches in a supported written round sequence.
Open calculator →