23/32 inch in decimal and mm
Decimal inches
0.71875 in
0.7188 in to four places
Millimetres
18.25625 mm
From the standard, the international inch, 25.4 mm exactly
The math
- A fraction is its top number divided by its bottom number: 23/32 in = 23 ÷ 32 = 0.71875 in.
- An inch is exactly 25.4 mm, so 0.71875 × 25.4 = 18.25625 mm, or 18.256 mm to three places.
- In feet, divide by 12: 0.71875 ÷ 12 = 0.059896 ft. In centimetres, divide the mm by 10: 1.825625 cm.
- The same size in finer steps: 23/32 = 46/64. A tape marked in 16ths, 32nds or 64ths shows it at those marks.
23/32 to the nearest 1/8, 1/16
A tape or rule marked more coarsely than 32ths can’t show 23/32 exactly. The nearest marks, and how far off each is (plus means the mark is bigger; a size exactly halfway goes to the bigger mark):
| Nearest | Mark | Off by (in) | Off by (mm) |
|---|---|---|---|
| 1/8 | 3/4 in | +0.03125 | +0.794 |
| 1/16 | 3/4 in | +0.03125 | +0.794 |
Drills, plywood and lumber at 23/32 in
| Drill | Size | Off by |
|---|---|---|
| 18 mm | 0.7087 in | −0.2563 mm |
| 18.5 mm | 0.7283 in | +0.2437 mm |
Every drill is on the drill bit size chart.
Bits of this size
Sizes either side
Every size is on the fraction to decimal chart; any other size goes in the fraction to decimal calculator.