Yarn, knitting and crochet calculators

Turn label quantities, measured gauge and swatches into stitch counts, shaping rows, yarn requirements and project costs.

Leftover yarn calculator

Weigh the remaining yarn and use its label length-to-mass ratio to find metres and yards.

Cast on calculator

Fit a measured width to a whole stitch repeat plus the total edge stitches.

Sleeve shaping calculator

Distribute paired increases or decreases over your available rows without losing the final stitch count.

Pattern resize calculator

Convert a pattern count to your washed gauge, then fit it to the required repeat.

C2C size and yarn calculator

Use a finished corner-to-corner tile sample to calculate the graph grid and its yarn.

Hat size calculator

Turn head circumference, ease and washed gauge into a brim count and crown decrease plan.

Sock knitting calculator

Choose a heel flap or heel-free tube and get counted cuff, heel, gusset and toe instructions.

Top-down raglan calculator

Plan four raglan lines, split the sleeves and add underarm stitches for a measured pullover.

Buttonhole spacing calculator

Place buttons between two edge margins and show each position in centimetres and rows.

Crochet border pickup calculator

Distribute border stitches evenly along a side and fit the count to a border repeat.

Long tail cast on calculator

Scale the yarn used by a small cast-on sample and add a working tail.

Yarn unit converter

Convert metres, yards, grams, ounces, tex, denier and metric count from one label.

Yarn project cost calculator

Round yarn quantities to whole balls and add the other project materials.

Crochet pricing calculator

Combine materials, paid working time, overhead and selling fees to build a price.

Knitting and crochet time calculator

Use a timed sample to estimate the remaining work and calendar time.

Knitting shrinkage calculator

Compare a swatch before and after washing to find the starting dimensions for your target.

Weaving yarn calculator

Calculate warp ends, cutting length and weft yarn with take-up, shrinkage and loom waste.

Spinning grist and twist calculator

Convert a measured skein into grist, metric count and twist per inch.

Macramé cord calculator

Scale an actual knotted sample into individual cutting lengths and the full cord supply.

Punch needle yarn calculator

Scale the yarn used by a filled sample to your design area.

Yarn dye recipe calculator

Weigh dye from the percentage of fibre mass given in your dye recipe.

Cross stitch fabric calculator

Find fabric width and height from stitch counts, fabric count and border margins.

Crochet stitch multiple calculator

Find both neighbouring stitch counts for a repeat multiple plus an edge offset.

Amigurumi shape pattern generator

Build a counted six-sector sphere or a straight-sided cylinder in US single crochet.

Needle and crochet hook selector

Choose a yarn category to find trial metric tool sizes, then use your measured gauge to adjust.

Yarn yardage and blanket calculator

Scale a weighed swatch and round up to whole balls.

Gauge calculator

Convert measured stitches and rows to finished dimensions.

Yarn substitution calculator

Compare label length, mass, gauge and replacement balls.

Granny square calculator

Fit a blanket with whole motifs and joins.

Held together calculator

Combine strand linear density.

Increase and decrease calculator

Distribute exact one-row changes.