Toolkit CoveCalculators for everyday projects

Crafts

Yarn calculator: how much yarn do I need?

A worsted (4) afghan takes about 2,250–3,125 yards and a hat about 200–225 yards (Lion Brand). Divide by the yards on your skein label, round up, and buy from one dye lot.

I want to
Nine skeins of yarn in a row: the most an adult sweater in worsted yarn takes at 200 yards a skein1,125–1,625 yd ÷ 200 yd a skein = 6–9 skeinsAdult sweater, worsted (4) yarn
Yards for the project ÷ yards on the skein label, rounded up. Buy the top of the range, from one dye lot.

How much yarn for hats, scarves, sweaters and blankets

Typical yardage for an average adult size, by Craft Yarn Council weight number. Use the weight number on your yarn’s label.

Approximate yards by project and yarn weight (Lion Brand)
Project1 Super fine2 Fine3 Light4 Medium5 Bulky6 Super bulky7 Jumbo
Hat250–325250–325200–250200–225125–200125–15030–60
Scarf525–825450–625375–500375–500250–375250–375125–200
Socks (pair)350–500300–450275–400275–375250–350200–250175–200
Shawl550–850450–700400–625375–550350–500350–475300–400
Adult sweater3,3751,750–2,6251,500–2,2501,125–1,625950–1,125825–1,125825–1,125
Baby blanket1,500–1,6251,250–1,5001,125–1,2501,000–1,125875–1,000750–875625–750
Afghan (throw blanket)3,750–4,1253,500–3,7503,000–3,5002,250–3,1252,000–2,2501,625–2,0001,375–1,625

Citing this? Link to https://toolkitcove.com/crafts/yarn-calculator/. Yardage from Lion Brand Yarn. Free to reuse with a link (CC BY 4.0).

Yarn weights explained

The number on the label (0 to 7) is the Craft Yarn Council weight: higher numbers are thicker yarns, worked on bigger needles, so a project needs fewer yards.

Craft Yarn Council standard yarn weights
WeightNameYarn typesKnit stitches per 4 inNeedle (mm)
0LaceFingering, 10-count crochet thread33–401.5–2.25
1Super fineSock, fingering, baby27–322.25–3.25
2FineSport, baby23–263.25–3.75
3LightDK, light worsted21–243.75–4.5
4MediumWorsted, afghan, aran16–204.5–5.5
5BulkyChunky, craft, rug12–155.5–8
6Super bulkyRoving7–118–12.75
7JumboRoving6 or fewer12.75 and up

Substituting a yarn

Multiply the pattern’s skeins by its yards per skein for the total yardage, then divide by the yards on your new yarn’s label and round up. Switch the calculator to Swap a yarn to do this. Stay within the same weight and knit a gauge swatch.

Questions

How many skeins of yarn for a blanket?

A worsted (4) afghan takes about 2,250–3,125 yards: 12–16 skeins of 200 yards. A worsted baby blanket takes 1,000–1,125 yards, 5–6 skeins.

How much yarn for a hat?

About 200–225 yards of worsted (4) yarn: 1–2 skeins of 200 yards. Bulky (5) yarn takes 125–200 yards.

How much yarn for a sweater?

About 1,125–1,625 yards of worsted (4) yarn for an adult sweater, 6–9 skeins of 200 yards. Larger sizes and cables use more.

How much yarn for a scarf?

About 375–500 yards of worsted (4) yarn, or 2–3 skeins of 200 yards.

Should I buy extra yarn?

Buy the top of the range, all from the same dye lot: skeins from different lots can differ in color. A spare skein costs less than running out.

What does the number on a yarn label mean?

It’s the Craft Yarn Council weight, 0 (lace) to 7 (jumbo). Worsted is 4 (medium), knit at 16–20 stitches per 4 in on 4.5–5.5 mm needles.

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