10 millimeters (mm) is equal to 1 centimeter (cm) and is approximately 0.394 inches or slightly more than 3/8 inches. This length is about the width of a standard pencil or roughly the diameter of a small coin such as a US dime. On a ruler with millimeter markings, 10 mm corresponds exactly to the 1 cm mark. In summary, 10 mm is:
- Exactly 1 centimeter.
- Approximately 0.394 inches (a bit over 3/8 inch).
- A small length often used in everyday measurements for small objects.
