Knitting Calculators

Every knitting-specific calculator on the site, covering gauge, garment shaping, sock construction, and blanket sizing.

Knitting's two-needle construction and stitch-by-stitch shaping create precise sizing requirements across garments — sweaters, socks, and hats all depend on gauge-driven stitch counts to fit correctly. This category brings together every knitting-specific calculator on the site, from cast-on math to garment shaping and sock construction.

Getting gauge right matters more in knitting than almost anywhere else — see the gauge swatching guide for the full process. For sock-specific construction and sizing, see the sock knitting guide.

Garment-focused tools in this category (raglan increases, sleeve decreases, yoke shaping) generally depend on an accurate gauge swatch to produce correct results, since all of the shaping math is calculated from stitches-per-inch. If a finished piece isn't coming out the expected size, gauge is the first thing worth double-checking before assuming a calculation error.

All 27 tools in this category