An adult medium pullover in worsted weight yarn needs approximately 1,400 yards. Cardigans need about 20% more, while vests need about 40% less due to no sleeves.

Pullover (M, worsted): ~1,400 yards / 7 skeins
Cardigan (M, worsted): ~1,700 yards / 9 skeins
Vest (M, worsted): ~800 yards / 4 skeins
Fingering weight adds ~60% more yardage but lighter fabric
Bulky yarn: ~20% less yardage, quicker to knit

Does sweater size significantly affect yarn requirements?

Yes, each size jump adds roughly 10–15% more yarn. An XL pullover needs about 30% more yarn than a medium in the same weight and style.

XS: ~80% of medium yardage
S: ~90% of medium yardage
L: ~115% of medium yardage
XL: ~130% of medium yardage
2XL: ~145% of medium yardage

Size	Pullover (worsted)	Cardigan (worsted)
S	~1,260 yd	~1,530 yd
M	~1,400 yd	~1,700 yd
L	~1,610 yd	~1,955 yd
XL	~1,820 yd	~2,210 yd

What yarn weight is best for a first sweater?

Worsted or DK weight yarn is ideal for a first sweater. Both work up at a reasonable pace and are forgiving of minor tension inconsistencies compared to fingering weight.

Worsted (#4): fastest to knit, uses US 7–9 needles
DK (#3): slightly finer, beautiful drape for garments
Avoid fingering weight for first sweater (slow, easy to lose count)
Smooth, light-colored yarn shows stitches best for learning

How do I calculate yarn for a sweater with colorwork?

Colorwork (stranded or intarsia) adds 15–25% more yarn because you carry multiple colors. Buy extra of each color rather than splitting the total estimate evenly.

Fair Isle / stranded: add ~20% to total yardage
Intarsia (large blocks): add ~15%
Main color typically uses 60–70% of total yarn
Always buy an extra skein of each color for safety

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Last Updated: Jun 11, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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