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CONVERSION TABLES
Here you will find several tables provided to assist you in determining scale ratios and/or dimensions.
Please note many modelers refer to scale as a fraction, while others refer to it as a ratio. For instance, 1/48 is also referred to as 1:48. Both are correct. |
|
|
| HOBBY SCALE |
HOBBY DESCRIPTION |
1 ACTUAL
INCH = |
1 SCALE FOOT =
(FRACTION) |
1 SCALE
FOOT =
(DECIMAL) |
1 SCALE METER =
(METRIC) |
| 1/4 |
LIVE STEAM TRAINS
FLYING MODELS |
4" |
3" |
3 |
250.0mm |
| 1/8 |
LIVE STEAM TRAINS
CARS, MOTORCYCLES |
8" |
1-1/2" |
1.50 |
125.0mm |
| 1/12 |
DOLLHOUSES
CARS, MOTORCYCLES |
1'-0" |
1" |
1 |
83.3mm |
| 1/16 |
LIVE STEAM TRAINS
CARS, MOTORCYCLES |
1'-4" |
3/4" |
.75 |
62.5mm |
| 1/20 |
CARS |
1'-8" |
19/32" |
.60 |
50.0mm |
| 1/22.5 |
G SCALE TRAINS |
1'-10" |
17/32" |
.53 |
44.4mm |
| 1/24 |
CARS, DOLLHOUSES, TRUCKS |
2'-0" |
1/2" |
.50 |
41.7mm |
| 1/25 |
CARS, TRUCKS |
2'-1" |
15/32" |
.48 |
40.0mm |
| 1/32 |
NO. 1 TRAINS
AIRCRAFT, CARS, 54mm FIGURES |
2'-8" |
3/8" |
.375 |
31.3mm |
| 1/35 |
ARMOR |
2'-11" |
11/32" |
.343 |
28.6mm |
| 1/43 |
CARS, TRUCKS |
3'-7" |
9/32" |
.279 |
23.3mm |
| 1/48 |
O SCALE TRAINS
AIRCRAFT, ARMOR, 1/4" SHIPS |
4'-0" |
1/4" |
.250 |
20.8mm |
| 1/64 |
S SCALE TRAINS
AIRCRAFT |
5'-4" |
3/16" |
.187 |
15.6mm |
| 1/72 |
AIRCRAFT, ARMOR BOATS |
6'-0" |
11/64" |
.167 |
13.9mm |
| 1/76 |
ARMOR |
6'-4" |
5/32" |
.158 |
13.2mm |
| 1/87 |
HO SCALE TRAINS
ARMOR, TRUCKS |
7'-3" |
9/64" |
.138 |
11.5mm |
| 1/96 |
AIRCRAFT, 1/8" SCALE SHIPS |
8'-0" |
1/8" |
.125 |
10.4mm |
| 1/100 |
AIRCRAFT |
8'-4" |
- |
.120 |
10.0mm |
| 1/125 |
AIRCRAFT |
10'-5" |
- |
.096 |
8.0mm |
| 1/144 |
AIRCRAFT |
12'-0" |
1/12" |
.083 |
6.9mm |
| 1/160 |
N SCALE TRAINS |
13'-4" |
- |
.075 |
6.3mm |
| 1/192 |
1/16" SCALE SHIPS |
16'-0" |
1/16" |
.062 |
5.2mm |
| 1/200 |
AIRCRAFT, SHIPS |
16'-8" |
- |
.060 |
5.0mm |
| 1/220 |
Z SCALE TRAINS |
18'-4" |
- |
.054 |
4.5mm |
| 1/285 |
WARGAME PIECES |
23'-9" |
- |
.042 |
3.5mm |
| 1/350 |
SHIPS |
29'-2" |
- |
.034 |
2.9mm |
| 1/700 |
SHIPS |
58'-4" |
- |
.017 |
1.43mm |
| 1/720 |
SHIPS |
60'-0" |
1/60" |
.016 |
1.38mm |
| 1/1200 |
WARGAME SHIPS |
100'-0" |
1/100" |
.010 |
0.8mm |
| 1/2400 |
WARGAME SHIPS |
200'-0" |
1/200" |
.005 |
0.4mm |
| HOBBY SCALE |
HOBBY DESCRIPTION |
1 ACTUAL
INCH = |
1 SCALE FOOT =
(FRACTION) |
1 SCALE
FOOT =
(DECIMAL) |
1 SCALE METER =
(METRIC) |
HOBBY CONVERSION CHART
Computed to the Nearest 1/64"
|
ACTUAL
SIZE
|
1" = 1'-0"
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" |
| 1" = 100' |
1:1200 |
| 1" = 75' |
1:900 |
| 1" = 60' |
1:700 |
| 1" = 50' |
1:600 |
| 1" = 40' |
1:500 |
| 1" = 30' |
1:400 |
| 1" = 20' |
1:250 |
| 1" = 10' |
1:125 |
| 1/32" = 1' |
1:400 |
| 1/16" = 1' |
1:200 |
| 3/32" = 1' |
1:125 |
| 1/8" = 1' |
1:100 |
| 3/16" = 1' |
1:75 |
| 1/4" = 1' |
1:48 |
| 3/8" = 1' |
1:32 |
| 1/2" = 1' |
1:24 |
| 3/4" = 1' |
1:16 |
| 1" = 1' |
1:12 |
|
FRACTION
|
DECIMAL
|
FRACTION
|
DECIMAL |
FRACTION
|
DECIMAL
|
FRACTION
|
DECIMAL
|
| 1/64 |
.0156 |
17/64 |
.2656 |
33/64 |
.5156 |
49/64 |
.7656 |
| 1/32 |
.0312 |
9/32 |
.2812 |
17/32 |
.5312 |
25/32 |
.7812 |
| 3/64 |
.0468 |
19/64 |
.2968 |
35/64 |
.5468 |
51/64 |
.7968 |
| 1/16 |
.0625 |
5/16 |
.3125 |
9/16 |
.5625 |
13/16 |
.8125 |
| 5/64 |
.0781 |
21/64 |
.3281 |
37/64 |
.5781 |
53/64 |
.8281 |
| 3/32 |
.0937 |
11/32 |
.3437 |
19/32 |
.5937 |
27/32 |
.8437 |
| 7/64 |
.1093 |
23/64 |
.3593 |
39/64 |
.6093 |
55/64 |
.8593 |
| 1/8 |
.125 |
3/8 |
.375 |
5/8 |
.625 |
7/8 |
.875 |
| 9/64 |
.1406 |
25/64 |
.3906 |
41/64 |
.6406 |
57/64 |
.8906 |
| 5/32 |
.1562 |
13/32 |
.4062 |
21/32 |
.6562 |
29/32 |
.9062 |
| 11/64 |
.1718 |
27/64 |
.4218 |
43/64 |
.6718 |
59/64 |
.9218 |
| 3/16 |
.1875 |
7/16 |
.4375 |
11/16 |
.6875 |
15/16 |
.9375 |
| 13/64 |
.2031 |
29/64 |
.4531 |
45/64 |
.7031 |
61/64 |
.9531 |
| 7/32 |
.2187 |
15/32 |
.4687 |
23/32 |
.7187 |
31/32 |
.9687 |
| 15/64 |
.2343 |
31/64 |
.4843 |
47/64 |
.7343 |
63/64 |
.9843 |
| 1/4 |
.250 |
1/2 |
.500 |
3/4 |
.750 |
1 |
1.00 |
|
FRACTIONS AND DECIMALS TO MILLIMETERS
|
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
| 1/64 |
0.4 |
17/64 |
6.7 |
33/64 |
13.1 |
49/64 |
19.4 |
1-1/8 |
28.6 |
| 1/32 |
0.8 |
9/32 |
7.1 |
17/32 |
13.5 |
25/32 |
19.8 |
1-1/4 |
31.8 |
| 3/64 |
1.2 |
19/64 |
7.5 |
35/64 |
13.9 |
51/64 |
20.2 |
1-1/2 |
38.1 |
| 1/16 |
1.6 |
5/16 |
7.9 |
9/16 |
14.3 |
13/16 |
20.6 |
1-3/4 |
44.5 |
| 5/64 |
2.0 |
21/64 |
8.3 |
37/64 |
14.7 |
53/64 |
21.0 |
2 |
50.8 |
| 3/32 |
2.4 |
11/32 |
8.7 |
19/32 |
15.1 |
27/32 |
21.4 |
3 |
76.2 |
| 7/64 |
2.8 |
23/64 |
9.1 |
39/64 |
15.5 |
55/64 |
21.8 |
4 |
101.6 |
| 1/8 |
3.2 |
3/8 |
9.5 |
5/8 |
15.9 |
7/8 |
22.2 |
5 |
127 |
| 9/64 |
3.6 |
25/64 |
9.9 |
41/64 |
16.3 |
57/64 |
22.6 |
6 |
152.4 |
| 5/32 |
4.0 |
13/32 |
10.3 |
21/32 |
16.7 |
29/32 |
23.0 |
10 |
254 |
| 11/64 |
4.4 |
27/64 |
10.7 |
43/64 |
17.1 |
59/64 |
23.4 |
12 |
304.8 |
| 3/16 |
4.8 |
7/16 |
11.1 |
11/16 |
17.5 |
15/16 |
23.8 |
15 |
381 |
| 13/64 |
5.2 |
29/64 |
11.5 |
45/64 |
17.9 |
61/64 |
24.2 |
24 |
609.6 |
| 7/32 |
5.6 |
15/32 |
11.9 |
23/32 |
18.3 |
31/32 |
24.6 |
30 |
762 |
| 15/64 |
6.0 |
31/64 |
12.3 |
47/64 |
18.7 |
63/64 |
25.0 |
36 |
914 |
| 1/4 |
6.4 |
1/2 |
12.7 |
3/4 |
19.1 |
1 |
25.4 |
|
|
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
| .010 |
0.3 |
.110 |
2.8 |
.310 |
7.9 |
.520 |
13.2 |
.920 |
23.4 |
| .015 |
0.4 |
.120 |
3.0 |
.320 |
8.1 |
.540 |
13.7 |
.940 |
23.9 |
| .020 |
0.5 |
.130 |
3.3 |
.330 |
8.4 |
.560 |
14.2 |
.960 |
24.4 |
| .025 |
0.6 |
.140 |
3.6 |
.340 |
8.6 |
.580 |
14.7 |
.980 |
24.9 |
| .030 |
0.8 |
.150 |
3.8 |
.350 |
8.9 |
.600 |
15.2 |
1.00 |
25.4 |
| .035 |
0.9 |
.160 |
4.1 |
.360 |
9.1 |
.620 |
15.7 |
1.25 |
31.8 |
| .040 |
1.0 |
.170 |
4.3 |
.370 |
9.4 |
.640 |
16.3 |
1.50 |
38.1 |
| .045 |
1.1 |
.180 |
4.6 |
.380 |
9.7 |
.660 |
16.8 |
1.75 |
44.5 |
| .050 |
1.3 |
.190 |
4.8 |
.390 |
9.9 |
.680 |
17.3 |
2.00 |
50.8 |
| .055 |
1.4 |
.200 |
5.1 |
.400 |
10.2 |
.700 |
17.8 |
2.25 |
57.2 |
| .060 |
1.5 |
.210 |
5.3 |
.410 |
10.4 |
.720 |
18.3 |
2.50 |
63.5 |
| .065 |
1.7 |
.220 |
5.6 |
.420 |
10.7 |
.740 |
18.8 |
2.75 |
69.9 |
| .070 |
1.8 |
.230 |
5.8 |
.430 |
10.9 |
.760 |
19.3 |
3.00 |
76.2 |
| .075 |
1.9 |
.240 |
6.1 |
.440 |
11.2 |
.780 |
19.8 |
3.50 |
88.9 |
| .080 |
2.0 |
.250 |
6.4 |
.450 |
11.4 |
.800 |
20.3 |
4.00 |
101.6 |
| .085 |
2.2 |
.260 |
6.6 |
.460 |
11.7 |
.820 |
20.8 |
4.50 |
114.3 |
| .090 |
2.3 |
.270 |
6.9 |
.470 |
11.9 |
.840 |
21.3 |
5.00 |
127 |
| .095 |
2.4 |
.280 |
7.1 |
.480 |
12.2 |
.860 |
21.8 |
5.50 |
139.7 |
| .100 |
2.5 |
.290 |
7.4 |
.490 |
12.4 |
.880 |
22.4 |
6.00 |
152.4 |
| |
|
.300 |
7.6 |
.500 |
12.7 |
.900 |
22.9 |
|
|
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
Inch
|
mm
|
|
|
