What QuiltM8 does

26 free calculators: binding, backing, borders (butted or mitred), half-square and quarter-square triangles, flying geese, square-in-a-square, on-point setting, sashing and layout, bed sizes with drop, what a precut really yields, block resizing, batting, bias binding, spacers, strip rolls, a seam-allowance check — and the money questions: what a precut costs per usable square, wide backing against piecing, a longarm ballpark, postage weight — plus kitting a whole quilt from a block recipe, and the patchwork units chart. Five more come with the paid packs: pricing your work, project costs, stash value, time, and the full longarm quote.

Yes — exactly. The arithmetic is exact fraction arithmetic, answers come back in the eighths and sixteenths you cut in, and the keypad has a fraction row. Typing works too: it reads 2 1/2, 2-1/2, 2½, 2.5 and 2,5.

Yes — every field says which one it means, every time. A 6″ finished half-square triangle is cut at 6 7/8″ and trimmed to 6 1/2″; the app tells you all three so you never hold them in your head.

The safe way, always: fabric and cut sizes round up (a little too much is a scrap; a little too little is a ruined cut), counts round the way that never promises a piece that isn’t there, and a shopping list is rounded once, on the total.

Yes. A project keeps every worksheet for one quilt together, the plan derives what it can and lets you enter anywhere, and it also works backwards: “I have this fabric — what size can I make?”

Yes — every saved worksheet contributes, fabrics used more than once are added up before rounding, and there is a +10% safety-margin toggle and a check-off mode for the shop. On the worked example, rounding once instead of cut-by-cut saves 1/8 yd of the same fabric.

Yes. One tap makes a printable sheet: every cut size and count, the shopping list, the assumptions, and the diagrams. It is made to be pinned above the cutting table.

Yes — charm packs, layer cakes, jelly rolls, fat quarters and fat eighths: how many of your pieces each really yields, and what a precut truly costs per usable square inch against yardage, with the break-even price.

Yes. It prices piecing ordinary-width fabric against wide backing at your shop’s prices — seams counted — and shows the price at which the answer flips. On the worked example the wide backing is 2 3/4 yd less fabric and no seam.

Yes, as an honest band rather than false precision — minimum charges included, because they triple the naive answer on a baby quilt. It is labelled Estimate, and it says which figure is the soft one.

Yes — sew a short test set, measure it, and the seam check tells you how far off your quarter inch really is and which way to correct.

Yes — set the usable width of fabric and your seam allowance once in Settings and every tool uses them. Each tool can still override them for one calculation.

Yes — baby to king, with the drop and tuck worked in, so “make it fit a queen” is one field, not a research project.

Yes — saving, history and favourites are free, along with export and print of any result. Everything stays on your phone, and the whole app works in airplane mode.