How to use this calculator
Choose your project type, yarn weight, and size. The calculator uses standard yardage estimates for each combination. If you already know the exact yards from your pattern, select "Custom dimensions" and enter that number directly.
Enter the yards per skein from your yarn label (or use the default for your chosen weight). Optionally add the price per skein to see a total cost estimate. The calculator rounds up to whole skeins since you cannot buy partial ones.
Yarn weight guide
Lighter yarn weights (lace, fingering) produce delicate fabrics but require more yardage. Heavier weights (bulky, super bulky) work up faster and use fewer yards but create thicker, warmer fabric. Worsted weight is the most popular for general projects because it balances speed, drape, and warmth.
Frequently asked questions
How much yarn do I need for a blanket?
A standard 50x60 inch blanket in worsted weight yarn typically requires 1,800 to 2,200 yards. A baby blanket (30x36) needs about 800 to 1,200 yards. Bulky yarn uses fewer yards but produces a heavier blanket. Always check your specific pattern for exact requirements.
How do I estimate yarn for any project?
Start with your pattern's recommended yardage. Without a pattern, use standard estimates: scarves need 200 to 400 yards, hats need 100 to 200 yards, and adult sweaters need 1,200 to 1,800 yards in worsted weight. Lighter yarns need more yards; heavier yarns need fewer.
What if I run out of yarn?
Try to buy yarn from the same dye lot for a perfect color match. If unavailable, alternate rows between old and new yarn near a seam to blend differences. To prevent running out, always buy one extra skein at the start of your project.
What are dye lot considerations?
Dye lots are batches of yarn dyed together. The same color can look slightly different between lots. Always buy all your yarn from the same dye lot number (printed on the label). If you must mix lots, alternate skeins every few rows to blend the variation gradually.