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Yarn calculators
Plan yarn quantities, skeins, substitutions and project materials with focused free tools.
Skein calculatorTurn the yarn length in your pattern into a practical number of skeins, with an optional margin for swatching and small variations.Open calculatorCrochet blanket yarn calculatorStart with a quick range based on blanket size and yarn weight, or use a measured sample for a more accurate estimate.Open calculatorYarn calculatorScale the yarn used by a measured sample to estimate yarn length and skeins for a rectangular project.Open calculatorYarn substitution calculatorCompare yarn lengths and find the number of replacement skeins needed for a pattern.Open calculatorYarn length converterConvert yarn labels and pattern requirements between meters and yards.Open calculatorYarn weight converterConvert yarn and project weights between grams and ounces.Open calculatorSweater yarn calculatorEstimate yarn for a sweater, cardigan or vest with separate body, tapered-sleeve and finishing calculations.Open calculatorHat yarn calculatorEstimate crochet or knitting yarn for a fitted hat with the crown and folded brim calculated separately.Open calculatorBaby blanket yarn calculatorEstimate yarn for a baby blanket from finished size and measured swatch consumption.Open calculatorScarf yarn calculatorEstimate yarn for a scarf from its width, length and swatch consumption.Open calculatorShawl yarn calculatorEstimate yarn for a shawl from planned dimensions and swatch consumption.Open calculatorYarn held together calculatorCombine two yarns from the length and net weight printed on each label, then compare their exact combined linear density and equivalent put-up.Open calculatorRemaining yarn calculatorEstimate usable yarn left either from a known amount used or by weighing a partial ball against its original label length and weight.Open calculatorYarn cost calculatorConvert the yarn units a project needs into complete store packs, actual checkout spend, effective unit cost and the value left in your stash.Open calculatorYarn by sample calculatorUse the yarn by sample calculator to turn your own measurements into a clear, editable result.Open calculatorWPI calculatorCalculate wraps per inch from a longer measured section and compare the result with every matching Craft Yarn Council weight range.Open calculatorYarn stash sufficiency calculatorCompare matching yarn already in your stash with a project estimate plus safety allowance, then calculate complete extra skeins only when needed.Open calculatorBlanket project calculatorUse the blanket project calculator to turn your own measurements into a clear, editable result.Open calculatorSweater project calculatorEstimate sweater yarn from finished body measurements, tapered sleeve dimensions, finishing allowance and a measured swatch.Open calculatorHat project calculatorEstimate hat yarn from the straight section, reduced crown area, folded brim and a measured swatch.Open calculatorAmigurumi project calculatorEstimate amigurumi yarn from the total pattern stitch count and yarn measured across a representative group of stitches.Open calculator