1/16 Inch as a Decimal

Answer
0.0625 in
1/16 in = 0.0625 in = 1.5875 mm

1/16 inch is the smallest mark on most standard tape measures and machinist rulers, falling exactly halfway between a whole-inch line and the 1/8 inch mark. As a decimal it equals 0.0625 inches, which converts to 1.5875 millimeters. Woodworkers rely on this fraction for tight joinery gaps and veneer thickness, and it is exactly half of 1/8 inch (0.125 in), the next larger mark on the tape.

Try another fraction
/
Decimal
0.0625
Millimeters
1.5875 mm

Related values

ValueResult
Decimal0.0625 in
Millimeters1.5875 mm
Centimeters0.1588 cm
Feet0.005208 ft

How the conversion works

  1. Divide. Divide the numerator (1) by the denominator (16) to convert the fraction directly to a decimal.
  2. Decimal result. 1 ÷ 16 = 0.0625. This is the exact value with no rounding needed, since 16 divides evenly into powers of ten.
  3. Convert to mm. Multiply the decimal by 25.4, the number of millimeters in one inch: 0.0625 × 25.4 = 1.5875 mm, useful when matching a metric drawing or drill bit to an imperial part.

Frequently Asked Questions

1/16 equals 0.0625 as a decimal. You get this by dividing the numerator, 1, by the denominator, 16. It is one of the smallest marks found on a standard imperial tape measure.

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