What does caliber measure in firearms?

Caliber usually denotes the internal diameter of a gun barrel or can express barrel length as a multiple of that bore diameter.

What is a mil and where is it used?

A mil (or thou) is one thousandth of an inch, used primarily in U.S. manufacturing and engineering to specify small thicknesses and tolerances.

Can I use this converter to find exact firearm barrel lengths?

The conversion helps translate caliber measurements into mil units but requires contextual information as caliber can be dimensionless or a multiple rather than a direct length.

How to Convert from Caliber [cl] to Mil [mil, thou]

Learn how to accurately convert measurements from caliber (cl), a firearms and artillery length term, to mil (mil, thou), a precise unit of length used in manufacturing and engineering.

Caliber [cl]

Mil [mil, thou]

Please check your input. It must be a valid numeric value.

Caliber [cl] to Mil [mil, thou] Conversion Table

Caliber [cl]	Mil [mil, thou]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Caliber [cl] to Mil [mil, thou] Conversion Table
Caliber [cl]	Mil [mil, thou]

Explore More Length Units Converter

What Is This Tool?

This converter allows you to translate measurements between caliber, a term related to firearm bore diameters and barrel lengths, and mil, a small length unit widely used in manufacturing for specifying thicknesses and tolerances.

How to Use This Tool?

Enter the value in caliber units (cl) you wish to convert.
Select caliber as the source unit and mil (mil, thou) as the target unit.
Click convert to obtain the equivalent length in mil.

Key Features

Converts caliber values, representing bore diameter or barrel length multiples, to mil measurements.
Supports length conversions specifically for firearms engineering and precision manufacturing.
Browser-based tool designed for ease of use and quick conversions.

Examples

2 caliber [cl] converts to 20 mil [mil, thou].
5 caliber [cl] converts to 50 mil [mil, thou].

Common Use Cases

Specifying bore diameter and barrel length in firearms and artillery measurements.
Determining precise thicknesses, clearances, and tolerances in manufacturing and engineering.
Designing PCB trace widths and other electronics manufacturing specifications.

Tips & Best Practices

Understand the context of caliber as either bore diameter or barrel length multiples before converting.
Use this tool to assist in detailed engineering and manufacturing calculations requiring fine length units.
Verify compatibility between firearms measurements and manufacturing specifications when converting.

Limitations

Caliber as a unit can be dimensionless or represent bore size; conversions need context for accuracy.
Mil is a fixed unit of length while caliber may represent relative barrel length or diameter multiples.
Direct length equivalence may not always apply without additional data on the firearm specifications.

Frequently Asked Questions

What does caliber measure in firearms?: Caliber usually denotes the internal diameter of a gun barrel or can express barrel length as a multiple of that bore diameter.
What is a mil and where is it used?: A mil (or thou) is one thousandth of an inch, used primarily in U.S. manufacturing and engineering to specify small thicknesses and tolerances.
Can I use this converter to find exact firearm barrel lengths?: The conversion helps translate caliber measurements into mil units but requires contextual information as caliber can be dimensionless or a multiple rather than a direct length.

Key Terminology

Caliber [cl]: A firearms and artillery term representing the bore diameter of a gun barrel or barrel length as a multiple of that diameter.
Mil [mil, thou]: A unit of length equal to one thousandth of an inch, used in manufacturing to specify small thicknesses and tolerances.

Quick Knowledge Check

What does the unit caliber primarily represent in firearms?

A unit of electrical resistance

The internal diameter or length multiple of a gun barrel

A measurement of weight

What is the length equivalent of 1 mil?

One thousandth of an inch

One inch

One millimeter

What is the conversion rate from caliber to mil?

1 caliber equals 100 mil

1 caliber equals 10 mil

1 caliber equals 1 mil

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