How Many Granny Squares Do I Need for a Blanket?

A throw (50 × 60 in) made of 6 in squares needs 80 squares: 8 across and 10 down. Our granny square calculator works it out for any blanket and square size, and the yarn too.

How to use it

1. Choose the blanket size, or type your own.
2. Measure one finished, blocked square, border included, and type its size.
3. Choose your yarn weight to see how much yarn the whole blanket takes.

Common blanket sizes

• Baby: 30 × 36 in
• Crib or toddler: 42 × 52 in
• Throw: 50 × 60 in
• Twin: 66 × 90 in, full: 80 × 90 in, queen: 90 × 100 in, king: 108 × 100 in

The calculator's page has a full chart of how many squares each size needs, for 4, 5, 6, 8, 10 and 12 in squares.

Don't forget the joins and border

A border adds a few inches all round, so a blanket a little small before the border is fine. Joins with a raised ridge add about ¼ in each, which adds up across a big blanket.

Prefer one piece? See the C2C blanket calculator.