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Millimeters to Inches Converter

Convert millimeters to inches instantly with precise calculations. Perfect for engineering, manufacturing, and precision measurements.

๐Ÿ“Š Quick Reference

6.35 mm

1/4 in

12.7 mm

1/2 in

25.4 mm

1 in

50.8 mm

2 in

304.8 mm

12 in

๐Ÿ’ก How to Use This Tool

Convert millimeters to inches instantly with our easy-to-use converter. Follow these simple steps:

1

Enter Millimeters

Type the millimeter value you want to convert in the input field.

2

View Result

The equivalent value in inches appears instantly as you type.

3

Copy Result

Click "Copy Result" to copy the converted value to your clipboard.

4

Reference Table

Use the quick reference section for common conversions.


๐Ÿ“– About Millimeters to Inches Converter

What is Millimeters to Inches Conversion?

Converting millimeters to inches is essential when working with precision measurements. Millimeters are the standard metric unit for small measurements worldwide, while inches are commonly used in the United States and other countries using the imperial system.

The Conversion Formula

One inch equals exactly 25.4 millimeters. Therefore:

Inches = Millimeters รท 25.4

For example, 50.8 millimeters รท 25.4 = 2 inches.

Common Use Cases

  • Engineering & Manufacturing: Converting metric specifications for imperial-based machines
  • 3D Printing: Converting dimensions from metric to imperial units
  • Woodworking: Working with hardware and lumber specified in different unit systems
  • Electronics: Reading datasheets with metric dimensions for imperial assemblies
  • Jewelry Making: Converting ring sizes and component dimensions

Quick Reference Table

Millimeters Inches
3.175 mm 1/8 in
6.35 mm 1/4 in
12.7 mm 1/2 in
25.4 mm 1 in
50.8 mm 2 in

Privacy & Security

This converter runs entirely in your browser. Your data never leaves your device. All calculations happen locally for complete privacy.


โ“ Frequently Asked Questions

Yes! All conversions happen locally in your browser using JavaScript. Your data never leaves your device and is not sent to any server.
To convert millimeters to inches, divide the millimeter value by 25.4. For example, 50.8 millimeters รท 25.4 = 2 inches. Our converter does this calculation instantly for you.
One inch equals exactly 25.4 millimeters. To convert mm to inches, divide by 25.4. This is an internationally standardized conversion factor.
Our converter uses the exact conversion factor of 25.4 and provides results with up to 6 decimal places for maximum accuracy.
This tool focuses on millimeters to inches conversion. For inches to mm, multiply the inch value by 25.4, or use our Inches to Millimeters Converter.