📐 Inches to MM Converter – Instant Calculator
Our Inches to MM Converter is a simple and accurate tool that lets you convert inches into millimeters instantly. Whether you are in construction, design, or education, this calculator is perfect for quick and reliable length conversions.
⚡ Conversion Formula
The formula for converting inches to millimeters is:
Millimeters = Inches × 25.4Example: 5 inches × 25.4 = 127 mm.
🔢 Conversion Table
| Inches | Millimeters |
|---|---|
| 1 in | 25.4 mm |
| 5 in | 127 mm |
| 10 in | 254 mm |
| 20 in | 508 mm |
| 100 in | 2540 mm |
📱 Features
- ✅ Instant conversion
- ✅ Accurate results with proper rounding
- ✅ Mobile-friendly design
- ✅ 100% free and browser-based
❓ FAQs
1. How many millimeters in 1 inch?
There are exactly 25.4 mm in one inch.
2. What is 12 inches in mm?
12 inches × 25.4 = 304.8 mm.
3. Can I convert mm to inches?
Yes! To convert millimeters to inches, divide the value by 25.4.