In the apparel industry, buttons are measured using two units: millimeters and Lignes (L). To assist fashion designers, trim buyers, and DIY enthusiasts in selecting the appropriate button sizes for jeans, we provide a comprehensive size chart designed to help you take accurate and precise measurements.
The Master Jeans Button Size Chart (L to mm to Inches)
Below is our master conversion chart, designed for designers, production managers, and hobbyists alike.
This table covers the most frequent sizes found in global denim production.
|
Ligne (L) |
Millimeters (mm) |
Inches (Decimal) |
Inches (Fractional) |
Primary Application |
Ligne (L) |
Millimeters (mm) |
|
20L |
12.5 mm |
0.50" |
1/2" |
Children's wear / Internal pockets |
20L |
12.5 mm |
|
22L |
14.0 mm |
0.55" |
9/16" |
Standard Button Fly |
22L |
14.0 mm |
|
24L |
15.0 mm |
0.59" |
19/32" |
Slim-fit waistbands / Youth denim |
24L |
15.0 mm |
|
27L |
17.0 mm |
0.67" |
21/32" |
Standard Waistband (Universal) |
27L |
17.0 mm |
The Anatomy of a Tack Button: Swivel vs. Fixed Caps
As a manufacturer, our jeans buttons are categorized into two distinct structural types: Swivel Caps and Fixed Caps.
1. Swivel Buttons (Moveable Caps)
The most common type of jeans button features a button head that can tilt or rotate slightly, making it easier to align with the buttonhole. Additionally, it can accommodate fabrics of varying thicknesses.
2.Fixed Buttons (Rigid Caps)
A Fixed button is exactly what it sounds like-the head is stationary and rigid. Once installed, it does not move or tilt.From a manufacturing perspective, fixed buttons often have a lower profile (sit closer to the fabric), which is ideal for minimalist designs.
How Fabric Weight (oz) Influences Your Size Choice
While the "size" usually refers to the face of the button, the "fit" is determined by how the button interacts with the fabric's thickness.
By matching your customized tack lengths to your specific fabric weight, you ensure a "factory-firm" finish that lasts the lifetime of the garment.
|
Denim Weight |
Recommended Button Size |
Recommended Tack Length |
Common Application |
|
6oz - 8oz |
14mm (22L) |
6.5mm |
Denim Shirts / Kids Jeans |
|
10oz - 12oz |
17mm (27L) |
7.0mm - 7.5mm |
Standard Men's/Women's Jeans |
|
14oz - 16oz |
17mm (27L) |
8.5mm |
Heritage Raw Denim / Workwear |
|
18oz+ |
20mm (32L) |
9.0mm+ |
Heavyweight Jackets / Selvedge |
At KUNSHUO, we understand that buttons are the "silent ambassadors" of your brand's quality. Whether you are looking for classic 27L jeans buttons for a heritage line or custom-branded hardware for a modern collection, our engineering team is here to ensure your measurements are mathematically perfect.
