How Much Yarn Do I Need for a Blanket?

There's no single number here — a blanket's yardage scales directly with area, so "how much yarn for a blanket" really means "how much yarn for a blanket of which size." What follows are this site's own computed figures across the range, from smallest to largest.

The real numbers, by size

At a shared worsted-weight reference gauge, this site's blanket size chart computes to: a 14×26in stroller blanket at 409 yards, a 30×36in crib blanket at 1,213 yards, a 50×60in throw at 4,755 yards, and a 108×90in king-size piece at 15,405 yards. Every figure includes a 10% allowance shown separately from the base estimate. Full worked math for every size lives on the matching baby blanket and adult blanket project pages.

Why the range is this wide

A king-size blanket is roughly 38 times the yardage of a stroller blanket — not a typo, just what happens when area, not a single "blanket" category, actually drives the math. Picking the wrong size off a rule of thumb wastes either yarn or a trip back to the store, which is exactly why this site computes per-size rather than offering one blanket-wide average.

Getting a number for your own dimensions

If your blanket doesn't match one of the charted sizes exactly, enter your own width, length, gauge, and stitch pattern into the Yarn Quantity Estimator directly — it runs the identical model behind every figure above, just for your specific numbers instead of a charted size.

Stitch pattern changes the total more than most people expect

The figures above use seed stitch for baby blankets and double crochet for adult sizes, matching each family's typical construction. Swap to a different stitch pattern at the same dimensions and gauge, and the total shifts — sometimes by a meaningful amount, since different stitch structures genuinely use different lengths of yarn per stitch. Re-run the estimator with your actual stitch pattern selected rather than assuming any of the figures above transfer directly.

FAQ

Does yarn weight affect the yardage total, or just how many skeins that yardage takes? Both, in different ways — a bulkier yarn covers the same area in fewer total yards (since each stitch is wider), while a finer yarn needs more yards to cover the identical area; weight and total yardage aren't independent of each other.

Should I buy the exact computed total, or add extra? Buy at least the total shown, which already includes a 10% allowance — for a project this size, many crafters add further margin (15-20% total) given how disruptive running short on a matched dye lot becomes partway through a large piece.

Is there a faster way to estimate without using the calculator? Not one that's genuinely reliable — a flat "yards per square foot" rule of thumb ignores your actual gauge and stitch pattern, both of which meaningfully change the real number for your specific project.