How Many Buttons Do I Need?

Planning a project or replacing worn buttons? Here's a quick guide to typical button counts and sizes for common garments. And if you find a button that you love but don't have a current use for – buy six. The right project will come along.

Shirts and Blouses

A standard button-front shirt may use 10–12 buttons in total:

  • Front placket: 6–8 buttons (10–15 mm). (Men's dress shirts have 8.)
  • Cuffs: 2–4 (10 mm)
  • Collar: 1–2 (10 mm)
  • Sleeve placket: 0–2 (10 mm)

Many shirts use one size throughout for simplicity.

Cardigans and Knit Jackets

Round-neck cardigans have 5–7 buttons down the front (15–20 mm), though cropped styles may have fewer and longer designs may have more. Chunky knits suit larger buttons; fine gauge knits look better with smaller ones.

Blazers and Sport Jackets

A single-breasted blazer may use 8–11 buttons, depending on design:

  • Front: 2–3 buttons (20–23 mm)
  • Sleeves: 3–4 per sleeve, 6–8 total (15 mm)

Double-breasted styles need more – typically 10–14 buttons with 4–6 on the front.

Coats and Outerwear

A single-breasted coat may use 10–14 buttons, depending on design:

  • Front: 4–6 buttons (23–32 mm)
  • Sleeves: 3–4 per sleeve, 6–8 total (15–18 mm)
  • Back vent: 0–2 (15–18 mm)

Double-breasted coats may need 14–18 buttons or more. Heavy winter coats tend toward the larger end of the size range.


A note on buying: Always buy a couple more than you need. We hold small inventories, and we don't want you to be disappointed if you lose one!