Inches to Millimeters Converter
Convert inches (in) to millimeters (mm) with precision. Essential for engineering, machining, and manufacturing.
Length Converter
Conversion Formula:
mm = inches × 25.4
inches = mm ÷ 25.4
Conversion Table
| Inches | Millimeters |
|---|---|
| 1/16 in | 1.588 mm |
| 1/8 in | 3.175 mm |
| 1/4 in | 6.350 mm |
| 3/8 in | 9.525 mm |
| 1/2 in | 12.700 mm |
| 5/8 in | 15.875 mm |
| 3/4 in | 19.050 mm |
| 7/8 in | 22.225 mm |
| 1 in | 25.400 mm |
| 1.5 in | 38.100 mm |
| 2 in | 50.800 mm |
| 3 in | 76.200 mm |
| 4 in | 101.600 mm |
| 6 in | 152.400 mm |
| 12 in | 304.800 mm |
Frequently Asked Questions
How many millimeters are in an inch?
There are exactly 25.4 millimeters in one inch. This is an exact definition.
What is 1/4 inch in mm?
1/4 inch equals 6.35 mm.
How do you convert inches to mm?
Multiply by 25.4. For example, 3 inches = 76.2 mm.
About Inches to MM
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