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Inches to metric conversion

The conversion from metric to inches can be confusing. Sometimes approximations are used. The following table lists common approximations used when converting from metric to inches and verse versa.

Inches to metric conversion chart
InchesMetric approxMetric exact
1"25mm25.4mm
2"50mm50.8mm
3"75mm76.2mm
4"100mm101.6mm
5"125mm127.0mm
6"150mm152.4mm
7"175mm177.8mm
8"200mm203.2mm
9"225mm228.6mm
10"250mm254.0mm
11"275mm279.4mm
12"300mm304.8mm
15"375mm381.0mm
18"450mm457.2mm
20"500mm508mm
24"600mm609.6mm
28"700mm711.2mm
30"750mm762mm
36"900mm914.4mm
48"1200mm1259.2mm
60"1500mm1524mm
72"1800mm1828.8mm
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