Redmoon Converters 在美国字母尺码、英国数字码、公制毫米和日本尺码之间换算任意钩针尺寸，并为每种钩针提供推荐毛线粗细。
| Metric (mm) | US | UK | Japan | Typical yarn |
|---|
Hook sizing is a lookup, not a formula. Metric mm is the only true measurement — US, UK and Japanese systems each use letters or numbers that map to a hook diameter. The chart below uses Craft Yarn Council standards.
UK numbers go DOWN as the hook gets bigger (opposite of metric). Always check gauge on your project — different manufacturers vary by ±0.1 mm.
Knitting Gauge Converter
Convert stitches per inch / cm and adjust pattern stitch counts for your actual tension.
Fabric Yardage Calculator
Yards or metres of fabric needed for any garment or project by size, fabric width and nap.
Candle Making Calculator (Wax & Fragrance Load)
Calculate wax and fragrance oil weight for any candle vessel size, wax type and fragrance load percentage.
Sticker / Decal / Vinyl Size & Cost Calculator
Calculate real-world size from a digital design and sticker cost per unit for Etsy and Cricut sellers.