well the scale length is the measurment from the nut to the bridge saddles, there are many different popular scale lengths to choose from. the standard length for Strats is 25.5 inches. to convert to cm, multiply the amount by 25.4

25.5 inches = 647.7 mm
i think thats right
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Quote by the snow queen
well the scale length is the measurment from the nut to the bridge saddles, there are many different popular scale lengths to choose from. the standard length for Strats is 25.5 inches. to convert to cm, multiply the amount by 25.4

25.5 inches = 647.7 mm
i think thats right

thanks dude! im gonna measure my guitar right know to see if I can put a maple/ebony neck without making major changes. cheers
remember its from the inside of the nut (towards the body) al the way to the point where the strings pass over the bridge saddles. although most guitars are actually a tiny bit longer then the correct scale length. this could be to compensate for the pressure involved in fretting the notes.
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Do you know what scale length your neck is? (24.75", 25", or 25.5")

To determine that measure from inside of nut to 12th fret then multiply it by two.
1 inch is 2.5 cm. And I just use a tape measure from saddles to nut gives a pretty good idea. The most common is 25.5 fender, then 24.75 gibson, then 25 PRS.
From a couple of books I have, there is a formula to determining your fret spacing (anyone PLEASE correct me if I'm wrong).

It's called the 18 rule, although the figure for the formula is slightly less (17.817)
For the distance from the nut to the first fret, divide the guitars total scale (ex: 25") by 17.817

25 / 17.817 = 1.403154. Round down to the thousands, for 1.403" from nut to 1st fret.

Now, subtract the number (1.403) from the entire scale length (25") to give you the remaining scale length (23.597).

Repeat this for each fret interval, always dividing the remaining scale length by 17.817.
So, on a 25" scale neck, the first few frets spacing would go like this:
Scale D. by 17.817 remaining
25" 1.403 23.597 Nut to 1st fret
23.597 1.324 22.273 1st to 2nd
22.273 1.250 21.023 2nd to 3rd
21.023 1.179 19.844 3rd to 4th

Hope this helps. Once again, if anyone disagrees, PLEASE tell me. I don't want to be passing out bad information.

Thanks.
Quote by gbmojo
From a couple of books I have, there is a formula to determining your fret spacing (anyone PLEASE correct me if I'm wrong).

It's called the 18 rule, although the figure for the formula is slightly less (17.817)
For the distance from the nut to the first fret, divide the guitars total scale (ex: 25") by 17.817

25 / 17.817 = 1.403154. Round down to the thousands, for 1.403" from nut to 1st fret.

Now, subtract the number (1.403) from the entire scale length (25") to give you the remaining scale length (23.597).

Repeat this for each fret interval, always dividing the remaining scale length by 17.817.
So, on a 25" scale neck, the first few frets spacing would go like this:
Scale D. by 17.817 remaining
25" 1.403 23.597 Nut to 1st fret
23.597 1.324 22.273 1st to 2nd
22.273 1.250 21.023 2nd to 3rd
21.023 1.179 19.844 3rd to 4th

Hope this helps. Once again, if anyone disagrees, PLEASE tell me. I don't want to be passing out bad information.

Thanks.

Er. Looks right to me. I would have to look up the magic number, but I do for sure know it is 17.xxx. 817 looks right though.

And as for how long the board is in cm, is google broken because i am sure you could find a conversion on there really easily.
Stew mac has a handy little calculator for measuring frets and bridge location.
Quote by the snow queen
well the scale length is the measurment from the nut to the bridge saddles, there are many different popular scale lengths to choose from. the standard length for Strats is 25.5 inches. to convert to cm, multiply the amount by 25.4

25.5 inches = 647.7 mm
i think thats right

Nearly.
Scale length is the theoretical figure used to determine fret positioning. It doesnt tell you were the bridge saddles should be... that is a combination of sting material vs diameter vs scale length vs action vs non playable string length (and even, to a point, vs fretting hand strength and saddle/bridge type!). Bridge saddles will ALWAYS be further back than where the scale length 'measurement from nut' is. Its just a minor point, but I know of two people who measured the nut to saddle measurement (when the bridge saddles were incorrectly positioned) and worked out the wrong scale length, then replaced the fretboards only to find a huge mistake later on.

Regards,
Perry Ormsby

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