FRET POSITION DIMENSIONS 
a useful page for builders

These are lists of fret positions for a selection of popular scale lengths used on stringed instruments. All measurements are in millimetres and start at zero position i.e. NUT or ZERO FRET and run up the neck towards the the bridge.

13" scale

0      0.00                                      
1      18.56
2      36.07
3      52.60
4      68.20
5      82.93
6      96.83
7      109.95
8      122.33
9      134.02
10    145.71
11    156.09
12    165.89
13    175.14
14    183.87
15    192.11
16    199.88
17    207.22
18    214.15
19    220.69
20    226.86
21
22
23
24

15" scale

0     0.00
1     21.44
2     41.67
3     60.77
4     78.80
5     95.82
6     111.88
7     127.04
8     141.35
9     154.86
10   167.64
11   179.67
12   191.02
13   201.74
14   211.86
15   221.41
16   230.96
17   239.43
18   247.43
19   254.99
20   261.12
21
22
23
24

17" scale

0     0.00
1     24.30
2     47.24
3     68.89
4     89.32
5     108.61
6     126.82
7     144.00
8     160.22
9     175.53
10   189.98
11   203.62
12   216.49
13   228.64
14   240.11
15   250.94
16
17
18
19
20
21
22
23
24

19" scale

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

20" scale

0     0.00
1     28.51
2     55.42
3     80.82
4     104.79
5     127.42
6     148.78
7     168.94
8     187.97
9     205.93
10   222.88
11   238.88
12   253.98
13   268.33
14   281.68
15   294.38
16   306.36
17   317.67
18   328.35
19   338.43
20   347.94
21   356.92
22
23
24

23.5" scale

0     0.00
1     33.50
2     65.12
3     94.97
4     123.14
5     149.73
6     174.82
7     198.51
8     220.87
9     241.98
10   261.90
11   280.70
12   298.45
13   315.20
14   331.01
15   345.93
16   360.022
17   373.31
18   385.86
19   397.71
20   408.89
21   419.44
22   429.40
23   438.80
24   447.67

--------------------------------------------------------------------------------------------------------------

24" scale

0     0.00
1     34.21
2     66.50
3     96.99
4     125.76
5     152.91
6     178.54
7     202.74
8     225.57
9     247.13
10   267.47
11   286.67
12   304.80
13   321.90
14   338.05
15   353.29
16   367.68
17   381.26
18   394.07
19   406.17
20   417.59
21   428.36
22   438.53
23   448.14
24   457.20

24 9/16"

0     0.00
1     35.01   
2     68.06
3     99.26
4     128.70
5     156.50
6     182.73
7     207.49
8     230.86
9     252.92
10   273.74
11   293.39
12   311.94
13   329.45
14   345.97
15   361.57
16   376.30
17   390.19
18   403.31
19   415.69
20   427.37
21   438.40
22   448.81
23   458.64
24   467.91

25"

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

25 1/2"

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

26" scale

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

28"

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24