How to Convert Inches to Millimeters
Converting inches to millimeters is a common task when working with international standards or metric measurements. One inch equals exactly 25.4 millimeters, making this conversion precise and reliable.
To convert inches to millimeters, multiply the inch value by 25.4. For example, 10 inches x 25.4 = 254 millimeters. This conversion is frequently used in manufacturing, engineering, woodworking, and any field where precision measurements are required.
The metric system is used worldwide, so knowing how to convert from imperial inches to metric millimeters is essential for global collaboration, reading technical drawings, or purchasing materials from international suppliers.
Quick Tips
- 1 mile = 1.609 km (miles are bigger)
- 1 kg = 2.205 lbs (roughly double + 10%)
- Temperature: (°F - 32) × 5/9 = °C
Frequently Asked Questions
1 inch equals exactly 25.4 millimeters.
Multiply the inch value by 25.4 to get millimeters.
Millimeters provide greater precision for technical and engineering applications.
Yes, 1 inch is defined internationally as exactly 25.4 mm.