Millimeter to Inch Converter
Convert Millimeter (mm) to Inch (in) instantly. Free online length conversion calculator.
About Millimeter
Symbol: mm
Category: Length
Description
The millimeter (mm) is a unit of length equal to one thousandth of a meter. It is part of the metric system and is commonly used for precise measurements.
Common Uses
- Engineering drawings and blueprints
- Medical measurements
- Manufacturing tolerances
- Jewelry and watch making
- Scientific measurements
Benefits
- High precision for small measurements
- Universal metric standard
- Easy conversion to other metric units
- Widely accepted in technical fields
Quick Facts
- 1 mm = 0.001 meters
- 1 inch = 25.4 mm exactly
- Human hair diameter: ~0.1 mm
- Credit card thickness: ~0.8 mm
About Inch
Symbol: in
Category: Length
Description
The inch (in) is a unit of length in the imperial system, equal to 1/12 of a foot or 2.54 centimeters exactly.
Common Uses
- Screen sizes (TV, phone, tablet)
- Pipe and lumber dimensions
- Clothing measurements
- Tool sizes
- Photography
Benefits
- Familiar in US and UK
- Good for small to medium measurements
- Standard in many industries
- Easy fractions (1/2, 1/4, etc.)
Quick Facts
- 1 inch = 2.54 cm exactly
- 1 foot = 12 inches
- Thumb width ≈ 1 inch
- Standard business card: 3.5 × 2 inches
Millimeter to Inch Conversion Table
| Millimeter | Inch |
|---|---|
| 1 mm | 0.03937 in |
| 5 mm | 0.19685 in |
| 10 mm | 0.393701 in |
| 25 mm | 0.984252 in |
| 50 mm | 1.968504 in |
| 100 mm | 3.937008 in |
| 500 mm | 19.685039 in |
| 1000 mm | 39.370079 in |
How to Convert Millimeter to Inch
To convert from Millimeter (mm) to Inch (in), multiply the value by 0.03937.
Formula:
in = mm × 0.03937
Example:
1 mm = 0.03937 in