How Many Granny Squares Do You Need for a Tote Bag?
Before you start a granny square tote, you need to know how many granny squares to make. The answer depends on two things: the size of your finished square and the size of the bag you want. This guide gives you a simple formula and a quick table, so you do not run out of squares or make too many.
The Simple Formula
- Measure one finished square. Measure after you have joined or blocked it, since joining can change the size slightly.
- Divide the bag width by the square size to get squares per row.
- Divide the bag height by the square size to get the number of rows.
- Multiply rows by squares per row for one panel, then double it for the front and back.
Example Size Chart
These numbers are for a bag that is about 12 in x 12 in (30 cm x 30 cm). They are an example, not a rule, since every maker’s squares come out slightly different.
| Square size | Squares per row | Squares per panel | Front and back |
|---|---|---|---|
| 3 in (7.5 cm) | 4 | 16 | 32 |
| 4 in (10 cm) | 3 | 9 | 18 |
| 6 in (15 cm) | 2 | 4 | 8 |
Bigger squares need fewer pieces and fewer seams, while smaller squares give a more detailed patchwork look but take longer to join.
Do Not Forget the Extras
- The base: some bags use extra squares or a crocheted rectangle for the bottom.
- Spare squares: make one or two extra in case a square comes out uneven.
- Handles: a crocheted strap uses extra yarn, so buy a little more than you think.
How Many Granny Squares: FAQ
How many granny squares for a medium tote? For a bag about 12 in (30 cm) square, roughly 18 squares of 4 in (10 cm) for the front and back is a good starting point.
Does yarn weight change the number? Yes. Thicker yarn makes bigger squares, so you need fewer. See our best yarn for crochet bags guide.
When your squares are ready, learn how to join granny squares, or follow the full guide to making a granny square bag. For an exact plan with sizes and yarn amounts, see the crochet bag patterns.