Sewing Needle Sizes and their uses. Download the pocket guide here
Needles are sized in metric and imperial. The smaller the numbers the finer the needle. Most home machines use needle system 130/705H - a few specialty machine models may use a different needle system, so check your machine's owner's manual. Schmetz Needles works with all household sewing machine brands including Brother, Baby Lock, Bernina Elna, Viking, Janome, Juki, Kenmore, Pfaff, Riccar, Singer, White, and More!