Most pre-cut packets contains the following.

Example: If a pattern calls for (1) Layer Cake then you would need (42) 10" squares.

Mini Charm - Contains (42) 2 1/2" squares

Charm Pack - Contains (42) 5" squares

Jelly Roll - Contains (40) 2 1/2" strips by the width of fabric

Layer Cake - Contains - (42) 10" squares

Honey Bun - Contains (40) 1 1/2" strips by the width of fabric