1/16 Inch to MM
Fractional inch to millimeters
1/16 inch (1/16″)
1.5875 mm
= 0.1588 cm · 1 inch = 25.4 mm exactly
💡 Commonly used for thin sheet metal, precision work.
Nearby fractional inches
| Fraction | mm | cm |
|---|---|---|
| 1/16″ | 1.5875 mm | 0.1588 cm |
| 1/8″ | 3.175 mm | 0.3175 cm |
| 3/16″ | 4.7625 mm | 0.4762 cm |
Also written as
1/16 to mm · 1/16 in mm · 1/16" in mm · 1/16 inch in mm · 1/16 inches to millimeters · 1/16 en mm · 0.0625 inch to mm
All of these mean the same measurement. The double-prime mark (″) and the plain quote (") both stand for inches, and en mm is simply the French and Spanish wording of the same question.
Closest metric drill size
1.5 mm
1/16″ = 1.5875 mm · difference 0.0875 mm
Metric drills step in 0.5 mm, so a fractional inch size rarely lands exactly on one. A 0.0875 mm gap is usually invisible in a clearance hole but changes the fit on a press fit or a tapped hole.
FAQ
How many mm is 1/16 inch?
1/16 inch equals 1.5875 mm. Since one inch is defined as exactly 25.4 mm, the result is 25.4 × 1 ÷ 16.
Why is the value exact?
The international yard and pound agreement of 1959 fixed the inch at exactly 25.4 mm, so fractional inch conversions terminate rather than repeat.