43/64 Inch to MM
Fractional inch to millimeters
43/64 inch (43/64β³)
17.065625 mm
= 1.706562 cm Β· 0.671875 inch decimal Β· 1 inch = 25.4 mm exactly
π‘ Standard fractional drill bit size. 1/64 in is also the finest graduation printed on a US tape measure.
Also written as
43/64 to mm Β· 43/64 in mm Β· 43/64" in mm Β· 43/64 inch in mm Β· 43/64 inches to millimeters Β· 43/64 en mm Β· 0.671875 inch to mm
All of these mean the same measurement. The double-prime mark (β³) 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
17 mm
43/64β³ = 17.065625 mm Β· difference 0.0656 mm
Metric drills step in 0.5 mm, so a fractional inch size rarely lands exactly on one. A 0.0656 mm gap is usually invisible in a clearance hole but changes the fit on a press fit or a tapped hole.
Nearby fractional inches
| Fraction | mm | cm | Decimal |
|---|---|---|---|
| 41/64β³ | 16.271875 mm | 1.627188 cm | 0.640625β³ |
| 21/32β³ | 16.66875 mm | 1.666875 cm | 0.65625β³ |
| 43/64β³ | 17.065625 mm | 1.706562 cm | 0.671875β³ |
| 11/16β³ | 17.4625 mm | 1.74625 cm | 0.6875β³ |
| 45/64β³ | 17.859375 mm | 1.785937 cm | 0.703125β³ |
43/64β³ is 43/64 of an inch β the 43rd mark from zero on a tape measure graduated in sixty-fourths.
FAQ
How many mm is 43/64 inch?
43/64 inch equals 17.065625 mm. One inch is defined as exactly 25.4 mm, so the result is 25.4 Γ 43 Γ· 64.
What is 43/64 inch in decimal?
43/64 inch is 0.671875 inch in decimal, which is 17.065625 mm or 1.706562 cm.
Which metric size is closest to 43/64 inch?
17 mm is the closest common metric size, a difference of 0.0656 mm. Fractional-inch and metric fasteners are not interchangeable when the gap is more than about 0.2 mm.
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.
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