Button Size Guide for Jackets and Coats

Jacket and coat buttons are typically larger than shirt buttons and are intended to work with heavier fabrics and larger garment proportions.

Common Sizes

Size Inches Ligne Common Use
18 mm 0.71" 28L Lightweight jackets and cardigans
20 mm 0.79" 32L Standard jackets
23 mm 0.91" 36L Coats and outerwear
25 mm 0.98" 40L Overcoats and heavier outerwear

Choosing a Size

Larger buttons are often used on heavier garments because they feel more in scale with thicker fabrics and larger garment proportions.

Lighter jackets may use smaller buttons, while heavier coats often benefit from larger sizes that match the visual weight of the garment.