CONVERSION TABLES
Metric to Imperial
conversion chart
mm inch
0.4 = 1/64
0.8 = 1/32
1.5 = 1/16
2.0 = 3/32
3.0 = 1/8
4.0 = 3/16
6.5 = 1/4
9.0 = 3/8
12.5 = 1/2
19 = 3/4
25 = 1
50 = 2
75 = 3
100 = 4
913 = 36
1000 = 39
Engine size
conversion
cu.cm cu.in
0.8 = 0.49
1.50 = 0.90
2.50 = 0.15
3.10 = 0.19
3.50 = 0.21
4.10 = 0.25
4.80 = 0.29
5.70 = 0.35
6.50 = 0.40
7.50 = 0.46
8.20 = 0.50
10.00 = 0.61
13.00 = 0.80
14.90 = 0.91
20.00 = 1.20
25.00 = 1.50
26.20 = 1.60
30.00 = 1.80
39.30 = 2.40
44.30 = 2.70
49.20 = 3.00
conversion:
1.0cu.in.=16.3934cc
or 0.061cu.in=1.0cc
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