Swatch & Start

A LITTLE MATH. A BETTER BEGINNING.

Make the numbers
part of the making.

From your first swatch to your last row. Five knitting tools, one thoughtful project plan.

Plan your cast-on ↗

Free tools · No pattern uploads · Your project stays in your browser

YOUR KNITTING WORKBENCH

A place for every little calculation.

Example project · auto-saved locally
See what washing changed before you cast on.

Compare a swatch before and after blocking · Diagnose pattern stitch and row gauge separately. Keep both directions in view, then carry your finished measurements into this workbench.

UNDERSTAND THE NUMBERS

Less guesswork.
More time with your yarn.

01 / GAUGE & REPEATS

Why 112 stitches may
be the wrong answer.

Read the cast-on method ↗

02 / BUYING YARN

Same ball weight.
Different amount of yarn.

Read the substitution method ↗

Made for knitting, with the assumptions in view.

These are planning estimates, not a fit guarantee. Rectangular estimates need matching fabric; garment grading, crochet instructions and paid pattern uploads are outside this workbench. Your project data is not sent to a server. Browser data can be cleared, so download a JSON backup.