FiberTools
The free toolkit for knitters and crocheters
FiberTools launched on May 4, 2026 with 4 votes, #2,419 of 20,538 launches that month and more than 75% of that year's launches.
What it does
FiberTools is a free collection of calculators and tools built specifically for fiber artists. Whether you're converting yarn weights, checking gauge, or decoding a vintage pattern from the 60s, FiberTools has you covered. No sign-up. No paywalls. Just fast, accurate tools that work the way fiber artists actually think. Tools include: Yarn Weight Calculator Gauge Calculator Vintage Pattern Decoder
Free online calculators for knitting, crochet, weaving, spinning & embroidery. Yarn calculator, gauge tools & more. No login. Works offline.
Calculate materials, correct gauge and stitch counts, or plan a knitting or crochet project with practical tools that show their work. All self-service calculators stay free. Optional professional reviews and project downloads are paid. Estimate yardage, compare yarn information, and prepare a realistic supply list. Turn a measured swatch into the stitch and row counts your project needs. Move from an idea to workable dimensions, quantities, and construction decisions. Five calculators to help size projects, estimate materials, and work through construction math. Calculate blanket stitch counts and estimate yarn from a measured swatch for sizes from baby to king. Scale yarn measured in a…from fibertools.app
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