Yarn Weight & Yardage Calculator
Project Yardage
Estimate yarn yardage needed for a project
Yarn Substitution
Calculate yardage when substituting a different yarn weight
yd
yd
Formula
Yardage = Base project yardage × Weight multiplier × Size multiplier | Skeins = Yardage / Yards per skein | Substitution = Original yardage × (New factor / Original factor)
Frequently Asked Questions
How much yarn do I need for a sweater?
An adult medium sweater in worsted weight typically needs 1,200-1,500 yards. Lighter weights need more yardage (1,500-2,000 for DK), while bulky yarn needs less (800-1,000 yards). Always check your specific pattern.
Can I substitute a different yarn weight?
Yes, but you need to adjust the yardage, needle/hook size, and gauge. Lighter yarn generally needs more yardage; heavier yarn needs less. The finished fabric texture and drape will differ, so swatch first.
How do I know what yarn weight to use?
Check the yarn label for the weight number (0-7) or name (fingering, sport, DK, worsted, bulky). Your pattern will specify a recommended weight. Worsted (#4) is the most versatile and common weight.
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