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How much thread a quilt really takes — piecing, quilting, and binding, needle and bobbin split out, turned into spools to buy and bobbins to wind.
A 60″ × 72″ quilt takes about 511 yd of thread — 270 yd through the needle and 241 yd in the bobbin.
Estimates assume 50wt thread on a lockstitch machine. Heavier thread (40wt, 28wt) covers the same line, so the yardage holds — but spools hold fewer yards of it, so check the put-up. Longarm quilters: your machine's consumption is the same math, your cones are just bigger. The thread link is an affiliate link — it costs you nothing and supports the free calculators.
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Confused by thread weights? The notions reference explains 40wt vs 50wt; the longarm cost calculator estimates having it quilted for you.
| Quilt | Light (~2″ apart) | Medium (~1″) | Dense (~½″) |
|---|---|---|---|
| Baby (40×52") | 73 yd | 145 yd | 289 yd |
| Throw (60×72") | 150 yd | 300 yd | 600 yd |
| Twin (66×88") | 202 yd | 404 yd | 808 yd |
| Queen (90×108") | 339 yd | 676 yd | 1,350 yd |
| King (108×108") | 406 yd | 811 yd | 1,621 yd |
Quilting only (top + bobbin together), 50wt on a lockstitch machine. Piecing and binding thread come on top — the calculator adds them.
At a typical edge-to-edge density (lines about an inch apart), a 90×108-inch queen uses roughly 675 yards — about 365 through the needle and 310 in the bobbin. Open quilting halves that; dense custom work doubles it, and heirloom-level micro fills can pass 2,500 yards. The calculator above adjusts for your exact size and density.
A class 15 bobbin holds about 55 yards of 50wt thread, so a queen at medium density needs around six bobbins just for the quilting — wind them all before you start. A throw usually takes three or four. Winding one mid-quilt is nobody's favorite interruption.
Almost. In a balanced lockstitch the bobbin consumes a little less than the needle thread — the top thread does the extra traveling up and down through the quilt sandwich. Plan on the bobbin using about 85% of what the top uses.
Far less than quilting it. Piecing an average throw-size top (samplers, nine-patches, HSTs) runs 150–250 yards including the bobbin. Simple big-piece tops take about half that; intricate small-piece tops with hundreds of seams can triple it.
The yardage stays the same — a stitched line consumes the same length whether it's 40wt or 50wt. What changes is the spool: heavier thread is thicker, so the same-size spool holds fewer yards. Check the put-up before assuming one spool will do it.
The same math — a longarm just runs it faster off bigger cones. If you're supplying thread to your longarmer, bring a full cone (2,000–3,000 yards) for anything queen-size or larger at medium density, and confirm they can use it: many machines are picky about thread quality at speed.
Dimensions, bed fit, batting, and backing math for every size on the quilt sizes chart.