|
Model Conversion Tables
| Inch and Millimetre to Centimetre |
| Actual Sizes |
Scale Size (Centimetre) |
| Inch |
mm |
N
1:160 |
1:100 |
HO
1:87 |
OO
1:72 |
1:50 |
O
1:48 |
1:35 |
1:25 |
| .010 |
0.25 |
4.1 |
2.5 |
2.2 |
1.8 |
1.3 |
1.1 |
0.9 |
0.6 |
| .015 |
0.38 |
6.1 |
3.8 |
3.3 |
2.7 |
1.9 |
1.6 |
1.3 |
1.0 |
| .020 |
0.50 |
8.1 |
5.0 |
4.4 |
3.7 |
2.5 |
2.2 |
1.8 |
1.3 |
| .025 |
0.64 |
10 |
6.4 |
5.5 |
4.6 |
3.2 |
2.7 |
2.2 |
1.6 |
| .030 |
0.75 |
12 |
7.5 |
6.6 |
5.5 |
3.8 |
3.3 |
2.7 |
1.9 |
| .040 |
1.0 |
16 |
10 |
8.8 |
7.3 |
5.0 |
4.4 |
3.6 |
2.5 |
| .050 |
1.3 |
20 |
12.7 |
11 |
9.1 |
6.4 |
5.5 |
4.4 |
3.2 |
| .060 |
1.5 |
24 |
15 |
13 |
11 |
7.5 |
6.5 |
5.3 |
3.8 |
| .080 |
2.0 |
32 |
20 |
18 |
15 |
10 |
8.7 |
7.1 |
5.1 |
| .100 |
2.5 |
40 |
25 |
22 |
18 |
12.5 |
11 |
8.9 |
6.3 |
| .125 |
3.2 |
50 |
37 |
28 |
23 |
16 |
14 |
11 |
8 |
| .156 |
4.0 |
63 |
40 |
34 |
28 |
20 |
17 |
14 |
10 |
| .188 |
4.8 |
76 |
48 |
41 |
34 |
24 |
20 |
17 |
12 |
| .250 |
6.4 |
102 |
64 |
55 |
46 |
32 |
27 |
22 |
16 |
| .312 |
7.9 |
127 |
79 |
69 |
57 |
40 |
34 |
28 |
20 |
| .375 |
9.5 |
152 |
95 |
83 |
68 |
48 |
41 |
33 |
24 |
| .438 |
11.1 |
178 |
111 |
96 |
80 |
56 |
48 |
39 |
28 |
| .500 |
12.7 |
203 |
127 |
110 |
91 |
63 |
55 |
44 |
32 |
| Inch to Scale Inch |
| Actual Sizes |
Scale Sizes (inches) |
| Inch |
Nearest fraction |
N
1:160 |
1:96 |
HO
1:87 |
OO
1:72 |
S
1:64 |
O
1:48 |
1:35 |
G
1:24 |
| .010 |
1/100 |
1 1/2 |
1 |
7/8 |
3/4 |
5/8 |
1/2 |
3/8 |
1/4 |
| .015 |
1/64 |
2 3/8 |
1 1/2 |
1 1/4 |
1 1/8 |
1 |
3/4 |
1/2 |
3/8 |
| .020 |
1/50 |
3 1/4 |
2 |
1 3/4 |
1 1/2 |
1 1/4 |
1 |
3/4 |
1/2 |
| .025 |
1/40 |
4 |
2 1/2 |
2 1/8 |
1 7/8 |
1 5/8 |
1 1/4 |
7/8 |
5/8 |
| .030 |
1/32 |
4 3/4 |
3 |
2 5/8 |
2 1/8 |
1 7/8 |
1 1/2 |
.1 |
3/4 |
| .040 |
1/25 |
6 3/8 |
4 |
3 1/2 |
2 7/8 |
2 1/2 |
2 |
1 3/8 |
1 |
| .050 |
1/20 |
8 |
5 |
4 3/8 |
3 5/8 |
3 1/4 |
2 1/2 |
1 3/4 |
1 1/4 |
| .060 |
1/16 |
9 5/8 |
6 |
5 1/4 |
4 3/8 |
4 |
3 |
2 1/8 |
1 1/2 |
| .080 |
5/64 |
12 3/4 |
8 |
7 |
5 3/4 |
5 |
4 |
2 3/4 |
2 |
| .100 |
1/10 |
16 |
10 |
8 3/4 |
7 1/4 |
6 1/2 |
5 |
3 1/2 |
2 1/2 |
| .125 |
1/8 |
20 |
12 |
10 7/8 |
9 |
8 |
6 |
4 3/8 |
3 |
| .156 |
5/32 |
25 |
15 |
13 1/2 |
11 1/4 |
10 |
7 1/2 |
5 1/2 |
3 3/4 |
| .188 |
3/16 |
30 |
18 |
16 1/4 |
13 1/2 |
12 |
9 |
6 1/2 |
4 1/2 |
| .250 |
1/4 |
40 |
24 |
21 3/4 |
18 |
16 |
12 |
8 3/4 |
6 |
| .312 |
5/16 |
50 |
30 |
27 1/4 |
22 1/2 |
20 |
15 |
11 |
7 1/2 |
| .375 |
3/8 |
60 |
36 |
32 1/2 |
27 |
24 |
18 |
13 |
9 |
| .438 |
7/16 |
70 |
42 |
38 |
31 1/2 |
28 |
21 |
15 |
10 1/2 |
| .500 |
1/2 |
80 |
48 |
43 1/2 |
36 |
32 |
24 |
17 1/2 |
12 |
ACTUAL
SIZE |
Scale Sizes |
|
|
1:12
|
G
1:24
|
#1
1:32
|
O
1:48
|
S
1:64
|
HO
1:87
|
TT
1:120
|
N
1:160
|
Z
1:220
|
|
2"
|
5/32" |
5/64" |
1/16" |
3/64" |
1/32" |
1/64" |
1/64" |
1/64" |
1/64" |
|
4"
|
11/32" |
11/64" |
1/8" |
5/64" |
1/16" |
3/64" |
1/32" |
1/64" |
1/64" |
|
6"
|
1/2" |
1/4" |
3/16" |
1/8" |
3/32" |
1/16" |
3/64" |
1/32" |
1/64" |
|
8"
|
21/32" |
21/64" |
1/4" |
11/64" |
1/8" |
3/32" |
1/16" |
3/64" |
1/32" |
|
10"
|
27/32" |
27/64" |
5/16" |
13/64" |
5/32" |
7/64" |
5/64" |
1/16" |
3/64" |
|
1'
|
1" |
1/2" |
3/8" |
1/4" |
3/16" |
9/64" |
3/32" |
5/64" |
1/16" |
|
2'
|
2" |
1" |
3/4" |
1/2" |
3/8" |
9/32" |
13/64" |
5/32" |
7/64" |
|
3'
|
3" |
1-1/2" |
1-1/8" |
3/4" |
9/16" |
13/32" |
19/64" |
15/64" |
5/32" |
|
4'
|
4" |
2" |
1-1/2" |
1" |
3/4" |
35/64" |
13/32" |
19/64" |
7/32" |
|
5'
|
5" |
2-1/2" |
1-7/8" |
1-1/4" |
15/16" |
11/16" |
1/2" |
3/8" |
17/64" |
|
10'
|
10" |
5" |
3-3/4" |
2-1/2" |
1-7/8" |
1-3/8" |
1" |
3/4" |
35/64" |
|
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