A queen quilt (90×108 inches) needs approximately 48 twelve-inch blocks in a 6×8 grid with 2-inch sashing and a 3-inch border, or 63 blocks set without sashing. Use the queen calculator above for exact numbers.

How many quilt blocks do I need for a throw quilt?

A throw quilt (60×80 inches) needs approximately 20 twelve-inch blocks in a 4×5 grid with sashing, or 25 blocks set without sashing. Use the throw calculator above for exact numbers.

How many quilt blocks do I need for a baby quilt?

A baby quilt (36×54 inches) needs approximately 12 six-inch blocks in a 4×6 grid with sashing, or 30 blocks set without sashing. The block size significantly affects the count — use the baby calculator above for exact numbers.

How do I calculate how many quilt blocks I need?

Divide the quilt width by the finished block size to get the number of columns, and divide the quilt height by the block size to get the number of rows. Multiply columns × rows for the total block count. If adding sashing, subtract the sashing width from each block's space first. The calculator above handles this automatically for all standard quilt sizes.

Designing a quilt from scratch?

Use our Quilt Designer to arrange real blocks into a full layout — then come back here to calculate exactly how many blocks you need.

Try the Quilt Designer

Need block ideas first? Browse the quilt block library — 1,200+ handmade blocks by state and theme.

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