Scaling factors to convert drawings

The following charts should serve as convenient help to scale down (or up) drawings from one ratio to another. All factors are given " % ". This way, drawings may easily be scaled to the desired ratio on a photocopier:

From/To Gauge 1
1:32
Gauge 0
1:48
Gauge S
1:64
Gauge 00
1:76
Gauge H0
1:87
Gauge TT
1:120
Gauge N
1:160
Gauge Z
1:220
1:32   150 % 200 % 238 % 272 %] 375 % 500 % 688 %
1:48 67 %   133 % 158 % 181 % 250 % 333 % 458 %
1:64 50 % 75 %   119 % 136 % 188 % 250 % 344 %
1:76 42 % 63 % 84 %   115 % 158 % 211 % 289 %
1:87 37 % 55 % 73 % 87 %   138 % 184 % 253 %
1:120 27 % 40 % 53 % 63 % 73 %   133 % 183 %
1:160 20 % 30 % 40 % 48 % 54 % 75 %   138 %
1:220 15 % 22 % 29 % 35 % 40 % 55 % 73 %  

If you have a Canon® - copier with scaling factors from 64% to 142%, this chart may be helpful to convert a drawing:

From X to Y Rounded % Steps Factors (%)
0 -> 1 150 2 125; 120
0 -> S 75 1 75
0 -> 00 63 2 77 ; 82
0 -> 00 63 1 64
0 -> TT 40 3 74; 74; 73
0 -> TT 40 2 64; 64
0 -> N 30 3 67; 67; 67
0 -> Z 22 4 69;68;68;68
S -> 1 200 2 142; 141
S -> 0 133 1 133
S -> 00 84 1 84
S -> H0 73 1 73
S -> TT 53 2 73; 73
S -> N 40 3 74; 74; 73
S -> N 40 2 64; 64
S -> Z 29 3 67; 66; 66
H0 -> 1 272 3 142; 139; 138
H0 -> 0 181 2 133; 136
H0 -> TT 73 1 73
H0 -> N 54 2 68; 80
H0 -> Z 40 3 73; 73; 74