Button Size Guide for Shirts

Shirt buttons are generally smaller than jacket or coat buttons. Most standard shirts use buttons between 11.5 mm and 15 mm.

Common Shirt Button Sizes

Size Inches Ligne Common Use
11.5 mm 0.45" 18L Collars and sleeve cuffs
12.5 mm 0.49" 20L Shirt fronts
15 mm 0.59" 24L Overshirts and heavier shirts

Choosing a Size

Smaller buttons usually create a lighter appearance and are commonly seen on dress shirts.

Larger buttons can feel more substantial and are often used on overshirts or casual styles where the fabric itself has more visual weight.