H E L P

Note: the calculated fret distances have the same measuring unit as the typed-in scale length. Choose the unit of measurement accordingly. It is obviously impossible to work to an accuracy of one hundredth of a millimeter or one thousandth of an inch, so the figures will have to be rounded up (5-9) or down (1-4) to tenths of a millimeter or hundredths of an inch. Tthe distance calculated for the 12th fret is exactly half of the total scale length. The fret constant 17.817 is a rounded number. This calulator uses 17.81715374510580 for maximum accuracy.