Precut Calculator
Pick a precut and a square size, and see how many squares you get from one piece and from a typical full pack.
Per piece
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In the app, this also gives you
- Strip precuts (jelly rolls, honey buns) too
- Your fabric width and seam allowance remembered
- The whole quilt's math in one app
What can I cut from a precut?
A fat quarter is 18" × 22" — the same quarter-yard of fabric as a strip, cut into a chunkier shape that yields bigger pieces. A jelly roll is forty 2 1/2" strips; a charm pack is forty-two 5" squares; a layer cake is forty-two 10" squares. To know what fits, divide each dimension by your cut size and round down, then multiply. This calculator does it for the whole pack at once.
Yields per cut size for every precut: see the pieces-from-fabric guide or grab the printable cheat sheet. For fat quarters specifically — what one is worth in yards, and the squares it yields at every size — there is a fat quarter yardage chart.
There's more where that came from
The app covers every precut in the same suite as the rest of the quilt math, so the pack you are cutting from and the backing, binding, and borders all come from one set of defaults.
Coming to the App Store for iPhone and iPad.