Scale length:			calculate
in mm or inches
Measures in your input format
	nut to fret	fret to fret
Nut
1			(0-1)
2			(1-2)
3			(2-3)
4			(3-4)
5			(4-5)
6			(5-6)
7			(6-7)
8			(7-8)
9			(8-9)
10			(9-10)
11			(10-11)
12*			(11-12)
13			(12-13)
14			(13-14)
15			(14-15)
16			(15-16)
17			(16-17)
18			(17-18)
19			(18-19)
20			(19-20)
21			(20-21)
22			(21-22)
23			(22-23)
24*			(23-24)
* Octaves