31/32 Inch to MM
Fractional inch to millimeters
31/32 inch (31/32β³)
24.60625 mm
= 2.460625 cm Β· 0.96875 inch decimal Β· 1 inch = 25.4 mm exactly
π‘ Common SAE socket, wrench and drill bit size β thirty-seconds are the usual step between sixteenth-inch sizes.
Also written as
31/32 to mm Β· 31/32 in mm Β· 31/32" in mm Β· 31/32 inch in mm Β· 31/32 inches to millimeters Β· 31/32 en mm Β· 0.96875 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
25 mm
31/32β³ = 24.60625 mm Β· difference 0.3938 mm
Metric drills step in 0.5 mm, so a fractional inch size rarely lands exactly on one. A 0.3938 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 |
|---|---|---|---|
| 29/32β³ | 23.01875 mm | 2.301875 cm | 0.90625β³ |
| 15/16β³ | 23.8125 mm | 2.38125 cm | 0.9375β³ |
| 31/32β³ | 24.60625 mm | 2.460625 cm | 0.96875β³ |
| 1/1β³ | 25.4 mm | 2.54 cm | 1β³ |
31/32β³ is 62/64 of an inch β the 62nd mark from zero on a tape measure graduated in sixty-fourths.
FAQ
How many mm is 31/32 inch?
31/32 inch equals 24.60625 mm. One inch is defined as exactly 25.4 mm, so the result is 25.4 Γ 31 Γ· 32.
What is 31/32 inch in decimal?
31/32 inch is 0.96875 inch in decimal, which is 24.60625 mm or 2.460625 cm.
Which metric size is closest to 31/32 inch?
25 mm is the closest common metric size, a difference of 0.3938 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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