Millimeters to Inches

Millimeters to Inches Conversion Formula

To convert millimeters to inches, use this precise mathematical formula:

Step-by-Step Guide for MM to Inches Conversion

1. Take your measurement in millimeters (mm)
2. Divide by 25.4 (the exact number of millimeters in one inch)
3. Get your result in inches (in or ″)

Common Millimeter to Inch Conversions

Practical MM to Inches Conversion Examples

Here are some real-world examples of mm to inches conversion:

• M8 bolt diameter: 8 mm = 8 ÷ 25.4 = 0.315″
• Plywood thickness: 18 mm = 18 ÷ 25.4 = 0.709″
• Pipe diameter: 32 mm = 32 ÷ 25.4 = 1.26″
• Smartphone screen: 158 mm = 158 ÷ 25.4 = 6.22″

When You Need MM to Inches Conversion

Converting millimeters to inches is essential in:

• Engineering design and technical drawings
• Manufacturing and quality control processes
• Hardware and fastener specifications
• Medical measurements and diagnostics
• Electronics and precision instruments
• Jewelry making and watchmaking

Understanding Millimeters and Inches