Yarn Wind-Off Calculator — Estimate Remaining Length

Use a digital kitchen scale for best results. Place your partial ball on the scale and note the weight in grams. Most kitchen scales are accurate to 1g, which is plenty for yarn estimation.

This method assumes the yarn has a consistent weight per metre throughout the ball. For most commercially wound yarn this is very accurate. Hand-spun or novelty yarns with varying thickness may be less precise.

Knit a row and weigh your ball before and after. The difference in grams, multiplied by the metres-per-gram ratio, gives you the yardage per row. Alternatively, use a yarn metre counter or measure a length of yarn against a known distance.

Yes — if your ball still has its label or band attached, remove it before weighing for the most accurate result. Paper bands weigh very little but thick card sleeves can add a few grams.