Interactive tools
Project math with the rounding visible
Each calculator runs in your browser, exposes its formulas, and keeps assumptions separate from the result.
01Approved baseline
Yarn calculator from a swatch
Estimate project mass, yarn length, and whole skeins from fabric you actually made.
Open tool 02Batch 01Gauge conversion planner
Compare raw stitch and row counts with repeat-safe candidates for simple dimensional sections.
Open tool 03Batch 01Pattern repeat calculator
Find lower, nearest, and higher counts that respect a stitch multiple and balance stitches.
Open toolWhat these tools do not do
They do not guarantee yarn quantity, fit, drape, or a safe rewrite of a shaped pattern. Use them to inspect calculations and candidates, then check the actual construction.