Millimeters to Inches
Conversion Table
| Millimeters | Inches |
|---|---|
| 1 mm | 0.0394 in |
| 2 mm | 0.0787 in |
| 3 mm | 0.1181 in |
| 4 mm | 0.1575 in |
| 5 mm | 0.1969 in |
| 6 mm | 0.2362 in |
| 8 mm | 0.3150 in |
| 10 mm | 0.3937 in |
| 12 mm | 0.4724 in |
| 15 mm | 0.5906 in |
| 19 mm | 0.7480 in |
| 20 mm | 0.7874 in |
| 25 mm | 0.9843 in |
| 30 mm | 1.1811 in |
| 40 mm | 1.5748 in |
| 50 mm | 1.9685 in |
| 75 mm | 2.9528 in |
| 100 mm | 3.9370 in |
| 150 mm | 5.9055 in |
| 200 mm | 7.8740 in |
Recent Cases
- May 22, 2026, 8:20 pm from United States converted 10 mm to inches
- May 19, 2026, 7:54 am from United States converted 100 mm to inches
- May 18, 2026, 10:19 pm from United States converted 50 mm to inches
- May 16, 2026, 12:21 am from United States converted 25.4 mm to inches
- May 14, 2026, 8:33 am from United States converted 100 mm to inches
- May 11, 2026, 5:09 am from United States converted 1 mm to inches
- May 10, 2026, 9:41 pm from United States converted 50 mm to inches
- May 10, 2026, 6:29 am from United States converted 10 mm to inches
- May 10, 2026, 6:11 am from United States converted 100 mm to inches
- April 29, 2026, 5:20 am from Singapore converted 1 mm to inches
Facts
- One inch is exactly 25.4 millimeters by international agreement since 1959.
- Millimeters are commonly used in engineering, manufacturing, and science.
- Rainfall is typically measured in millimeters worldwide.
- A US dime coin is about 1.35 mm thick.
Frequently Asked Questions
One millimeter equals approximately 0.0393701 inches. To convert mm to inches, divide by 25.4 (since 1 inch = 25.4 mm exactly).
10 mm equals approximately 0.3937 inches, which is just under 13/32 of an inch. The calculation is 10 ÷ 25.4 = 0.3937 inches.
A 5 mm drill bit equals 0.1969 inches, which is very close to a 13/64-inch drill bit (0.2031 in). For most applications, a 13/64" bit is the nearest standard imperial substitute for a 5 mm metric bit.
First divide the mm value by 25.4 to get decimal inches. Then multiply by the desired denominator (e.g., 16 for sixteenths) and round to the nearest whole number. For example: 10 mm ÷ 25.4 = 0.3937 in × 16 = 6.3, so 10 mm ≈ 6/16 = 3/8 inch.
50 mm equals approximately 1.9685 inches, which is just under 2 inches. A 50 mm camera lens is often called a "nifty fifty" and produces a field of view similar to the human eye.