Sizing Charts
Size labels ("Medium," "Adult L") vary enough between pattern designers that they're only ever a rough starting point. The actual measurement underneath a label — head circumference, chest, foot length — is what your project's real math is built on, which is why this section is organized around measurement bands rather than labels alone.
Age and size bands
Baby covers preemie through 12 months; toddler & child picks up from 2 years through age 10, chest, head, and foot length throughout. Adult hat sizes charts head circumference XS through 3XL.
Garment charts
Adult sweater charts the chest bands nearly every other adult chart on this site references; adult cardigan uses the identical numbers plus the front-opening decisions a closed pullover never has to make. The ease guide covers how much bigger or smaller than the body a finished garment should actually measure — the number a chest chart alone can't supply.
Accessory charts
Adult sock sizes charts foot length; foot circumference has no industry standard and needs direct measurement regardless. Glove & mitten sizes is honest about the fact that hand circumference has no published chart at all, and gives this site's own planning reference instead.
Non-body charts
Standard blanket sizes ties real dimensions to actual use — a crib, a couch, a specific bed — rather than a body measurement. Amigurumi standard sizes explains why a toy's finished scale comes from yarn weight and hook choice, not an age or body band at all.
Measure directly when you can
Every chart in this section is a fallback for when you genuinely can't measure the actual person a project is intended for — a gift, an estimate for someone not present. When you can measure directly, that real number beats any chart's rounded band, every single time.
Turning a measurement into a project
A chart gives you a target dimension; your own gauge turns that into stitch and row counts. The Cast-On Calculator and Stitch & Row Spacer do that conversion once you have both numbers in hand.
FAQ
What if a measurement falls between two bands on a chart? Round to the larger size if the project has some ease built in and being slightly big is the safer error; use your exact number directly in a calculator rather than a chart's rounded band if precision matters more.
Do these charts apply equally to knit and crochet projects? Yes — body measurements don't depend on craft; only the gauge math that turns a measurement into stitch counts differs between the two.
Why isn't there a single combined chart covering every project type? Because the measurement that actually matters changes by project — a hat cares about head circumference, a sweater about chest, a sock about foot length — and combining them into one table would bury the one number a specific project needs under several that don't apply.
Are these charts specific to knit and crochet patterns, or general body-measurement standards? They follow the same general body-measurement conventions used across the sewing and pattern-drafting world more broadly, adapted here specifically for how knit and crochet projects use them.