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All Free Knitting Calculators

Browse all 96 free calculators across 10 categories. Every tool is free, works on any device, and requires no signup.

Yarn & Fibre

Calculate yarn yardage, convert between yarn weights, plan substitutions, and estimate fibre content for any knitting or crochet project.

Convert gauge measurements, adjust for different needle sizes, and calculate stitch and row counts from your tension swatch.

Stitch Counts

Calculate cast-on counts, increases, decreases, pattern repeats, and stitch marker placement for any knitting pattern.

Calculate yarn quantities and dimensions for sweaters, socks, hats, scarves, blankets, and other knitted garments.

Shaping & Construction

Calculate raglan decreases, sleeve shaping, necklines, armholes, and other garment construction details.

Crochet

Crochet-specific calculators for gauge, amigurumi, granny squares, circles, ovals, blankets, and foundation chains.

Colourwork

Calculate yarn quantities for stripes, Fair Isle, intarsia, colour blocks, gradients, and other colourwork techniques.

Finishing

Calculate blocking measurements, seaming yarn, button spacing, zip lengths, and embellishments like pom poms, tassels, and fringe.

Pattern Maths

Scale patterns, calculate sizing percentages, plan custom designs, and work out stitch counts for wraps, bobbles, pleats, and ruching.

Plan knitting projects with time estimates, yarn budgets, stash management, and deadline tracking.

Why Use KnitCalcs?

Every calculator on this page is completely free, requires no signup, and works on any device. Get accurate results instantly with clear breakdowns you can trust.

KnitCalcs gives you 96+ specialist calculators across 10 categories. Results include detailed breakdowns and let you input your own prices for cost estimates tailored to your needs.