Starlight Quilt Block Calculator

Use rotary cutting or AccuQuilt to cut fabric for this 12′ finished block. When set block to block, this block gives a secondary design.

starlight quilt block
sarlight small quilt

This block is part of Block of the Day 2023 and is 0422 Starlight. Learn how to piece the Square in Square unit and how to sew mitered corners.

Watch the video below to see how this block is pieced. View the video on Youtube and you can download the block instructions from the description below the video.

Rotary Cutting

Squares and half square triangles are pieced to make this block. There are many ways to make half square triangles and many of them start by cutting strips of fabric. I recommend the Creative Grids Stripology ruler for this.

In the calculator below, the Two At A Time method used to piece the half square triangles. Fabric calculations should be adequate if you are using another method as well.

AccuQuilt Cutting

For this 12″ finished block the half square triangle and square units finish at 2″. Here are some AccuQuilt dies that will work: square 55059 multiples and (55709 8” Qube Shape 2)

Fabric Requirements

The Starlight Block is a 3 x 3 grid. In a 3 x 3 grid, units in each grid space finish at the same size. For this 12″ finished block, the corner, side and center units all finish at 4″.

Starlight Quilt Block Fabric Swatches
Starlight Quilt Block Diagram
Starlight Quilt Block Patch A

Step 1 – For each block, make the following half square triangles.

Starlight Quilt Block
Starlight Quilt Block

Step 2 – With the remaining A patches, make one center unit for each block.

Starlight Quilt Block
Starlight Quilt Block

Step 3 – For each block, make 4 side units and 4 corner units.

Starlight Quilt Block
Starlight Quilt Block
Starlight Quilt Block

Starlight Quilt Block

FABRIC 1

Patch A

Patch B

Patch C

FABRIC 2

Patch A

FABRIC 3

Patch A

Patch B

FABRIC 4

Patch A

Patch B


Remember to sign up for our Friday newsletter to be notified of new content here at The Quilt Calculator.

Happy quilting!