9 mm in inches
9 millimeters is 0.3543 inches (3/8″ to the nearest sixteenth).
Unit converter
Measurements
| mm | in | Fraction |
|---|---|---|
| 8 | 0.315 | 5/16″ |
| 8.5 | 0.3346 | 5/16″ |
| 9 | 0.3543 | 3/8″ |
| 9.5 | 0.374 | 3/8″ |
| 10 | 0.3937 | 3/8″ |
What to know
Formula: inches = millimeters × 0.03937. So 9 × 0.03937 = 0.3543.
Questions people ask
What is 9 mm in inches?
0.3543 inches.
What is 9 mm on a tape measure?
About 3/8 inches, rounded to the nearest 1/16 inch mark.
Related sizes
Sources and method
- International yard and pound agreement (1959): 1 in = 25.4 mm exactly
Imperial and metric values are converted with 1 in = 25.4 mm exactly and rounded only for display. Found a mistake? Report it and we will correct the page.