Yarn Skeins Needed Calculator
Enter your pattern's total required yardage and the yardage per skein of your chosen yarn to find out how many skeins to buy.
How the skein count is worked out
You cannot buy part of a skein, so the division is rounded up before the safety skeins are added:
skeins needed = ceil(total yardage / yards per skein)
skeins to buy = skeins needed + extra
yardage bought = skeins to buy × yards per skeinThe defaults divide exactly: 1000 yd at 200 yd a skein is 5, plus 1 spare makes 6 skeins and 1,200 yd on the shelf. The ceiling is unforgiving at the boundary - ask for 1,010 yd and you need 6 before the spare, 7 after, and those ten yards have cost you a whole skein and 200 yd of leftovers.
Getting the yardage figure right
The tool takes your total as given; it does not estimate it. Rough starting points for worsted weight, before any adjustment:
| Project | Typical yardage |
|---|---|
| Beanie | 150 - 250 yd |
| Scarf | 300 - 500 yd |
| Adult jumper | 1,000 - 1,400 yd |
| Throw blanket | 1,500 - 2,000 yd |
Stitch pattern moves these hard. Cables and stranded colourwork can take 20 to 40 per cent more yarn than stocking stitch over the same area, because the fabric pulls in and every float or crossing adds length. Garter and most crochet stitches also eat more than they look like they should.
Frequently asked questions
How many skeins of yarn do I need for a blanket?
A worsted throw of about 1,800 yd takes 9 skeins of 200 yd, ten with a spare. Chunky yarn covers the same area in fewer yards but far fewer per skein.
Can I substitute a yarn with a different yardage per skein?
Yes - match total yardage, never skein count. Ten 100 g skeins of 200 yd is 2,000 yd; ten 100 g skeins of a denser fibre may be only 1,200 yd.
How many extra skeins should I buy?
One for a hat or scarf, two for a garment or anything sized to fit. Running out during a sleeve is the expensive failure, not a leftover ball.