Knitting Calculators
Knitting calculators for yarn yardage, gauge adjustment, cast-on count, decrease rate, needle size by yarn, sleeve spacing, and project time estimates.
Gauge, yardage, cast-on counts and shaping. 9 calculators for knitters. Fabric and garment sewing sits under Sewing.
Gauge adjustment is the one that saves a whole sweater. Gauge is not a property of the yarn, it is a property of your hands, which is why two knitters with the same yarn and the same needle finish with different garments. If a pattern assumes 20 stitches per 4 inches and you swatch at 18, your stitches are wider, so you cast on fewer: 80 becomes 72. Row gauge works the same way vertically, and it is the half knitters usually skip.
Yarn yardage handles weight substitution, and the multipliers are smaller than most people assume. Worsted to fingering costs about 45% more yardage, not double. Finer yarn packs more yards into a gram, but each stitch also covers less fabric, and the two effects largely cancel.
Buy the full quantity in one dye lot. That is the real reason the number matters, and it is not a mistake you can correct halfway up a sleeve.
Knitting Decrease / Increase Rate Calculator
Plan even decreases or increases across a row or sleeve. Enter starting and target stitch counts plus row count to get the per-row spacing pattern.
Knitting Needle Size by Yarn Weight
Look up the recommended knitting needle size range for any standard yarn weight (lace through jumbo). Includes US, UK, and metric sizes side by side.
Sleeve Decrease Spacing Calculator
Plan even decreases along a knitted sleeve from upper-arm to cuff. Enter row counts and stitch counts to get the exact spacing pattern between decrease rounds.
Sweater Yarn Yardage Calculator
Estimate yarn yardage for a knitted sweater from chest size, yarn weight, sleeve style and stitch pattern. Adult sizes XS to 3XL, fingering through bulky.
Cast On Stitch Calculator
Calculate stitches to cast on based on your gauge swatch and desired width. Includes ease adjustments and rounding to any stitch pattern multiple.
Knitting Gauge Adjustment Calculator
Adjust a knitting pattern stitch count to match your actual gauge. Enter the pattern gauge, your gauge, and the original cast-on count to fix it.
Knitting Project Time Estimator
Estimate how long a knitting project will take based on total stitch count and your speed in stitches per minute. Shows hours needed and days to finish.
Knitting Rows to Length Calculator
Convert rows to inches or inches to rows using your row gauge. Essential for sleeve length, sock leg depth, and any vertically measured knitting piece.
Yarn Yardage Estimator for Knitting Projects
Estimate how many yards of yarn to buy for knitting a hat, scarf, sweater, socks, or blanket. Accounts for project size and yarn weight class.