Conversion table Inches to mm

In order to analyse data generated in the laboratory to determine its significance, you must first evaluate your data from a statistical perspective. The system of measurement, specifically the measurement of length, varies between the imperial and metric systems. An inch (symbol: in) is a unit of length in the common imperial (UK) and US systems of measurement. The inch is most commonly used in the United States, Canada and the United Kingdom. The following table shows length conversions between metric and inch.

How to Convert Inch to mm

Decimal Inches	Fractional Inches	Metric	Metric	Decimal Inches
Dimensions —	Inches to Metric		Dimensions —	Metric to Inches
0.031”	1/32”	0.79 mm	1.0 mm	0.039”
0.062”	1/16”	1.57 mm	1.8 mm	0.071”
0.125”	1/8”	3.18 mm	2.0 mm	0.079”
0.188”	3/16”	4.78 mm	3.0 mm	0.118”
0.250”	1/4”	6.35 mm	3.2 mm	0.126”
0.313”	5/16”	7.95 mm	4.0 mm	0.157”
0.375”	3/8”	9.53 mm	4.3 mm	0.169”
0.438”	7/16”	11.13 mm	4.6 mm	0.181”
0.500”	1/2”	12.70 mm	5.0 mm	0.197”
0.563”	9/16”	14.30 mm	6.0 mm	0.236”
0.625”	5/8”	15.88 mm	7.0 mm	0.276”
0.688”	11/16”	17.48 mm	8.0 mm	0.315”
0.750”	3/4”	19.05 mm	9.0 mm	0.354”
0.813”	13/16”	20.65 mm	1.0 cm	0.394”
0.875”	7/8”	22.23 mm	2.0 cm	0.787”
0.938”	15/16”	23.83 mm	3.0 cm	1.181”
1”	1”	2.54 cm	4.0 cm	1.575”
2”	2”	5.08 cm	5.0 cm	1.969”
3”	3”	7.62 cm	6.0 cm	2.362”
4”	4”	10.16 cm	7.0 cm	2.756”
5”	5”	12.70 cm	8.0 cm	3.150”
6”	6”	15.24 cm	9.0 cm	3.543”
7”	7”	17.78 cm	10.0 cm	3.937”
10”	10”	25.40 cm

Convert Inches to Units of Measurement (mm, cm)

Conversion Factors	Formula
Inches to millimeters	Value (inches) x 25.4
Inches to centimeters	Value (inches) x 2.54
Inches to microns	Value (inches) x 25.4 x 1,000

Example: Syringe Filter Selection by Diameter (mm converted to inches)

Syringe filter selection is based on filtration volume and size. There is a wide range of syringe filters available. Understanding the role of diameter, pore size, and membrane will help you make the right choice. Sample volume will determine the choice of diameter to ensure the filter is not overloaded. The following table will assist in the selection of syringe filters by diameter:

For small volumes (< 1 ml) syringe filters with a diameter of 3 mm or 0.118”
For medium volumes (1-10 ml) 15 mm or 0.590”
For large volumes (> 10 ml) 25 mm or 0,984” are chosen