Millimeter Converter
Convert millimeters to inches, feet, centimeters, meters, and other length units with instant bidirectional results.
Millimeter Length Converter
The Millimeter Converter converts millimeters to inches, feet, centimeters, meters, and other length units. One millimeter equals $0.1$ centimeters or $0.03937$ inches. Essential for engineering, machining, and metric-to-imperial work. Also try the Metric Converter and Metric to Imperial Converter.
Conversion Formula
To convert millimeters to inches:
$$\text{inches} = \frac{\text{mm}}{25.4}$$
To convert inches to millimeters:
$$\text{mm} = \text{inches} \times 25.4$$
Common Conversions
| Millimeters | Inches |
|---|---|
| 1 mm | 0.0394 in |
| 10 mm | 0.3937 in |
| 25.4 mm | 1 in |
| 100 mm | 3.937 in |
Frequently Asked Questions
How many inches are in a millimeter?
One millimeter equals approximately 0.03937 inches. Divide millimeters by 25.4 to get inches.
How many millimeters are in an inch?
One inch equals exactly 25.4 millimeters. This is the standard conversion used in engineering.
What is a mil vs a millimeter?
A mil is 1/1000 of an inch (0.0254 mm). A millimeter is a metric unit. They are different measurements.
How do I convert mm to feet?
Divide millimeters by 304.8. For example, 1,524 mm equals 5 feet.
Is this converter bidirectional?
Yes. Convert from millimeters to other units or from any supported unit back to millimeters.
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