mm to Inches Converter
Convert length from millimeters to inches instantly. Useful for manufacturing, crafts, hardware, and everyday measurement comparisons.
Enter a non-negative value. 25.4 mm equals exactly 1 inch.
Result will appear here.
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Privacy: runs locally in your browser. No inputs are stored or transmitted.
How it works
Uses the standard conversion: 1 inch = 25.4 mm.
Formula: in = mm ÷ 25.4
Examples
- 25.4 mm = 1 in
- 50 mm ≈ 1.9685 in
- 100 mm ≈ 3.9370 in
FAQ
- How do you convert millimeters to inches?
Divide millimeters by 25.4, or multiply millimeters by 0.0393700787.
- Can I reverse the conversion?
Yes. Use the Reverse button to switch between millimeters to inches and inches to millimeters.
- What is this useful for?
It is useful for engineering, manufacturing, crafts, screen sizes, and everyday measurements.
- Are my inputs stored?
No. All calculations run locally in your browser.