﻿ Calculating Button Sizes

### Calculating Button Sizes

Button Size

Ligne is a French word, which means, "line" and it is shortened with the letter of L. Button sizes are recognized worldwide with “L”

ligne is a linear unit (1/40 inch) used to measure diameter of buttons

How to measure the button

Before calculating button line we should know following measurement:

1 inches = 40 ligne = 2.54 cm,

1 ligne = 0.635 mm

So If the Button length (die) is 15 mm

1 ligne = 0.635 mm

Button die (in mm) / 0.635 = button ligne

15 mm / 0.635 = 23.62 = 24 L        (L = ligne)

So if required you could calculate button diameter from button ligne also.

Button diameter = Button Ligne X 0.635

23.62 (24) X 0.635= 15 mm

Button Size Matrix

 Line Inches Millimeters 10-line 0.250 6.35mm 14-line 0.362 9.2mm 16-line 0.413 10.5mm 18-line 0.457 11.6mm 20-line 0.500 12.7mm 21-line 0.531 13.5mm 22-line 0.559 14.2mm 23-line 0.583 14.8mm 24-line 0.590 15.0mm 27-line 0.661 16.8mm 28-line 0.701 17.8mm 30-line 0.748 19.0mm 32-line 0.807 20.5mm 34-line 0.846 21.5mm 36-line 0.902 22.9mm 40-line 1.000 25.4mm 60-line 1.500 38.1mm 80-line 2.000 50.8mm 100-line 2.500 63.5mm 120-line 3.000 76.2mm

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