CONVERSION TABLE INCHES TO MILLIMETERS CONVERTER, HOW MANY MM IN 1/4 INCH

To analyse data generated in the laboratory in order to lớn determine its significance, you must first evaluate your data from a statistical perspective. Dimensions system, specifically measuring length, varies between the English and metric systems. An inch (symbol: in) is a unit of length in the imperial (UK) & US customary systems of measurement. The inch is mostly used in the United States, Canada, and the United Kingdom. The following table shows conversions of length khổng lồ metric / inches.

How to Convert Inch to Millimeter:

Dimensions — Inches lớn Metric			Dimensions —Metric to lớn Inches
Decimal Inches	Fractional Inches	Metric		Metric	Decimal 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

Conversion Factors Formula

Inches to millimeters Inches x 25.4 mm/in

Inches lớn centimeters Inches x 2.54 cm/in

Inches lớn microns Inches x 25.4 mm/in. X 1,000 μm/mm

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

Syringe filter selection is based on the filtration volume và size. With a variety of syringe filters available, understanding the role of diameter, pore size, & membrane will aid in proper selection. Sample volume will determine the choice of diameter, ensuring that the filter is not overloaded. The following in table aids in selecting syringe filters by diameter:

To convert 1/4 inch to lớn mm, divide 1 by 4 to lớn convert the fraction lớn a decimal. Then, multiply that by 25.4 since there are 25.4 millimeters in one inch.

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That"s the formula that our calculator uses to lớn find that 1/4 inch to lớn millimeters is 6.35 mm.

Convert a measurement from SAE lớn metric or metric to lớn standard SAE using the calculator below. Learn more about SAE & metric measurements and refer khổng lồ the conversion chart below.

Convert SAE lớn Metric Convert Metric to lớn SAE
SAE Size:
inches
Metric Size:
mm

Metric Result:

Metric Result:
mm
SAE Result:

Nearest Standard Measurement

Exact Measurement

Learn how we calculated this below

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By
Joe Sexton

Joe is the creator of Inch Calculator và has over trăng tròn years of experience in engineering và construction. He holds several degrees and certifications.

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How lớn Convert SAE lớn Metric

SAE, or standard, và metric sockets, wrenches, and fasteners are both commonly used, & the difference between them is significant. Before we cover how to lớn convert SAE lớn metric, it’s important khổng lồ understand what these terms actually mean.

SAE stands for Society of Automotive Engineers,<1> and is based on standard imperial và U.S. Customary measurements. It’s based on measurements in inch fractions and is most commonly used in the United States.

Metric sizes are used worldwide, và sockets & screws are primarily measured in millimeters.

You can use the chart below to lớn convert an SAE size to metric, but you can also vì the conversion by hand in a few easy steps.

Step One: Convert the Fraction to lớn Decimal

The first step is lớn convert the inch fraction to lớn a decimal. You can do this by treating the fraction as a division problem và solving.

For instance:1/4″ = 1 ÷ 4 = 0.25″

Step Two: Convert to Millimeters

The next step is to multiply the inch decimal by 25.4 to convert it to millimeters. This is the key step for converting SAE khổng lồ metric.

0.25″ × 25.4 = 6.35 mm

SAE lớn Metric Conversion Chart

The chart below shows SAE and equivalent metric & inch decimal measurements for common socket, wrench, and screw sizes.

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SAE to lớn metric conversion chart showing equivalent standard and metric measurements

Standard (SAE)	Metric (mm)	Inches (decimal)
1/32″	0.7938 mm	0.0313″
	1 mm	0.0394″
1/16″	1.5875 mm	0.0625″
5/64″	1.98438 mm	0.0781″
	2 mm	0.0787″
3/32″	2.3813 mm	0.0938″
7/64″	2.7781 mm	0.1094″
	3 mm	0.1181″
1/8″	3.175 mm	0.125″
5/32″	3.9688 mm	0.156″
	4 mm	0.157″
	4.5 mm	0.177″
3/16″	4.7625 mm	0.188″
	5 mm	0.197″
	5.5 mm	0.216″
7/32″	5.5563 mm	0.219″
	6 mm	0.236″
1/4″	6.35 mm	0.25″
	6.5 mm	0.256″
	7 mm	0.276″
9/32″	7.1438 mm	0.281″
5/16″	7.9375 mm	0.313″
	8 mm	0.315″
11/32″	8.7313 mm	0.344″
	9 mm	0.354″
3/8″	9.525 mm	0.375″
	10 mm	0.394″
13/32″	10.3188 mm	0.406″
	11 mm	0.433″
7/16″	11.1125 mm	0.438″
15/32″	11.9063 mm	0.469″
	12 mm	0.472″
1/2″	12.7 mm	0.5″
	13 mm	0.512″
17/32″	13.4938 mm	0.531″
	14 mm	0.551″
9/16″	14.2875 mm	0.563″
	15 mm	0.591″
19/32″	15.0813 mm	0.594″
5/8″	15.875 mm	0.625″
	16 mm	0.63″
21/32″	16.6688 mm	0.656″
	17 mm	0.669″
11/16″	17.4625 mm	0.688″
	18 mm	0.709″
23/32″	18.2563 mm	0.719″
	19 mm	0.748″
3/4″	19.05 mm	0.75″
25/32″	19.8438 mm	0.781″
	20 mm	0.787″
13/16″	20.6375 mm	0.813″
	21 mm	0.827″
27/32″	21.4313 mm	0.844″
	22 mm	0.866″
7/8″	22.225 mm	0.875″
	23 mm	0.906″
29/32″	23.0188 mm	0.906″
15/16″	23.8125 mm	0.938″
	24 mm	0.945″
1″	25.4 mm	1″

More Standard to Metric Conversions

You can use our inches to lớn mm conversion calculator to convert SAE measurements to metric or convert these common sizes.