Granny Square Calculator — Rounds, Size & Squares Needed

Calibrate from a square you have made

Rounds worked

Measured size (in)

This is the accurate route — it captures your yarn, hook and tension in one number.

What do you want to know?

Target square size (in)

Rounds

Blanket from these squares

Blanket width (in)

Blanket length (in)

Joining adds per seam (in)