3/16 inch to decimal and mm
3/16" = 0.1875" = 4.762 mm
3/16 is a popular size for drill bits, rivets, Allen keys and steel plate. Since it sits between 1/8 and 1/4, people often have to look it up when reading a drawing in decimals.
To get the decimal, divide the top number by the bottom: 3 ÷ 16 = 0.1875. For millimeters, multiply that by 25.4, which gives 4.762 mm (about 4.8 mm if you're working with a metric ruler).
Nearby sizes in 64ths
| Fraction | Decimal (in) | Millimeters |
|---|---|---|
| 1/8" | 0.125000 | 3.175 mm |
| 9/64" | 0.140625 | 3.572 mm |
| 5/32" | 0.156250 | 3.969 mm |
| 11/64" | 0.171875 | 4.366 mm |
| 3/16" | 0.187500 | 4.762 mm |
| 13/64" | 0.203125 | 5.159 mm |
| 7/32" | 0.218750 | 5.556 mm |
| 15/64" | 0.234375 | 5.953 mm |
| 1/4" | 0.250000 | 6.350 mm |
Need a different value or want to round to 1/32 or 1/64? Use the full converter.