Knitting Yarn Yardage Calculator
By Gauge Swatch
Calculate yarn needed based on your gauge swatch measurement
By Yarn Weight Category
Quick estimate based on yarn weight and project type
Formula
Yarn (yards) = (Width × Stitches/inch) × (Length × Rows/inch) × Yarn per stitch / 36 × (1 + Waste%)
Frequently Asked Questions
How do I calculate yarn needed for a project?
Knit a gauge swatch, measure stitches and rows per 4 inches, then multiply by project dimensions to get total stitches. Multiply by yarn per stitch (varies by weight) and add 10% for waste.
How much yarn for a scarf?
A typical scarf (6" × 60") in worsted weight yarn requires about 300-400 yards. Wider or longer scarves need more. Bulky yarn uses fewer yards but more weight.
What if I run out of yarn mid-project?
Always buy an extra skein and keep the dye lot number. If you can't find the same dye lot, alternate rows of old and new yarn for a few inches to blend the color transition.
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