Length conversion
8 mm to in
0.315 in
8 millimetres = 0.315 inches. Exact factor: in = mm ÷ 25.4.
Live converter
Edit either field — the other updates instantly. Type decimal values like 38.4.
The formula
in = mm ÷ 25.4
Worked example: 8 × 0.0393700787 = 0.315 in.
Values near 8 mm
| mm | in |
|---|---|
| 7.25 | 0.2854 |
| 7.5 | 0.2953 |
| 7.75 | 0.3051 |
| 8this page | 0.315 |
| 8.25 | 0.3248 |
| 8.5 | 0.3346 |
| 8.75 | 0.3445 |
Frequently asked
How do you convert millimetres to inches?
Apply the formula in = mm ÷ 25.4. Enter any value in the live converter above and the result updates as you type.
What is 8 mm in in?
8 mm equals 0.315 in. The reference table below shows the values immediately around 8 mm.
Is this conversion exact?
Yes. Hardware, drill bits and camera lenses are specified in millimetres almost everywhere, including in the US.