What does ‘L’ Letter after Button Size Stands for?

Question: What does ‘L’ letter really stand for after the button size 18, 14 etc.? What's the measurement for buttons? ... asked by Sineth

‘L’ letter stands for Ligne (Button size code).
As defined by The free Dictionary Ligne is a linear unit  used to measure diameter of buttons. 1 Ligne equals to 1/40 inch.

Ligne is a French word.

Ligne is an international button size code/unit. For your quick reference button size chart has been attach below.
Buttons



Button Size Chart
Ligne Code
Button
Dia in Inch
Button
Dia in mm
10 L
0.25
6.4
14 L
0.35
8.9
16 L
0.4
10.2
18 L
0.45
11.4
22 L
0.55
14.0
24 L
0.6
15.2
26 L
0.65
16.5
28 L
0.7
17.8
30 L
0.75
19.1



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