Yarn Yardage Calculator — Project Planner & Skein Estimator
Estimate yarn yardage from project dimensions and gauge, or enter pattern yardage for skein count, cost, and weight conversion. Supports scarves, hats, blankets, sweaters, socks, and shawls with S–XL size presets.
Last updated: 2026-03-27
Yarn yardage calculator
Enter your values
Estimate yarn yardage from project size and gauge, or enter pattern yardage for skein count and weight conversion.
Shopping yardage
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Choose Project Planner to estimate from dimensions, or Pattern Yardage if your pattern lists the total yards needed.
Calculation History(0)
Example calculations
Tap an example to prefill the calculator with sample values.
Classic worsted scarf
72×10 in at 18 sts/4 in
A practical shopping estimate for a simple scarf where two average skeins often covers the project.
Result: About 399 yards, or two worsted skeins with a small planning buffer
Adult medium sweater — DK
28×24 in DK at 22 sts/4 in
Size M sweater preset with DK weight. The sweater multiplier accounts for sleeves and shaping.
Result: About 1,000 yards, 4–5 DK skeins
Pattern says 1,200 yards
Worsted pattern — skein count + cost
When you already know the yardage from a pattern, use pattern mode for quick skein math and a weight conversion estimate.
Result: 6 worsted skeins (~$84) with 10% buffer
Chunky blanket — XL
72×84 in super bulky at 8 sts/4 in
Large throw blanket in super bulky yarn. Size XL preset for a generous couch blanket.
Result: About 2,000 yards, ~23 super bulky skeins
How the yarn estimate works
In Project Planner mode, the calculator works from the overall area of the project (using size presets or custom dimensions), then adjusts the estimate based on yarn weight, gauge, and a project-type multiplier. Sweaters get a higher multiplier to account for sleeves and shaping.
In Pattern Yardage mode, you enter the yardage your pattern calls for, and the calculator adds a 10% buffer and converts to skein count. It also estimates what the yardage would be if you switched to a different yarn weight.
Both modes are still heuristics. Cables, lace, bobbles, colorwork, sleeves, border treatments, and whether you knit or crochet can all move the real yardage, so treat the output as a shopping guide rather than a guarantee.
Yarn yardage FAQs
How gauge, skein size, and project type affect the shopping estimate.
How accurate is this yarn calculator?
It is a planning estimate, not a pattern replacement. The calculator uses project area, gauge, and yarn-weight heuristics to get you into the right shopping range, but stitch pattern, texture, shaping, and how tightly you work can all change the real yardage.
Why does gauge change the estimate?
A tighter gauge means more stitches are packed into the same space, which usually means more yarn is needed to fill that area. A looser gauge does the opposite, so the estimate shifts with the gauge you enter.
Why does the skein count round up?
You cannot buy a partial skein, and running out near the end of a project is worse than buying slightly extra. The calculator rounds up to full skeins and already includes a small safety buffer to reduce that risk.
Can I use this for crochet and knitting?
Yes, but it stays approximate for both. Crochet often uses more yarn than knitting for the same area, while dense textured knitting can also push the real yardage higher than the estimate suggests.
How much yarn do I need for a blanket?
A baby blanket (36×36 in) in worsted typically needs 800–1,000 yards. A full throw (60×72 in) needs 2,500–3,500 yards. The exact amount depends on stitch pattern, gauge, and yarn weight. Use the size presets and your measured gauge for a better estimate.
What does the weight conversion estimate mean?
If you're considering a different yarn weight than your pattern calls for, the calculator estimates how much yardage you'd need at the alternative weight. This uses the ratio of yards-per-square-inch between weights — it's a rough planning guide, not exact, because stitch patterns behave differently at different weights.
Embed this calculator
Copy the code below to embed this calculator on your website or blog. It's free — no API key needed.
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Optional: auto-resize script
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