UOM Converter

Unit converters

Fractions of an inch

Fractional inches ↔ decimal inches ↔ millimetres, for drill bits, punches and enclosure sizes.

Try an example

Convert from

Unit

1-23/32" equals

Ruler from 1 to 2 inches: 1.719", 1-3/4"1"2"1.719"1-3/4"
How it's calculated
  • 1 inch = 25.4 mm exactly.
  • Nearest fraction: round to the nearest 1/16 or 1/64, then reduce (32/64 → 1/2).

Worked examples

1-23/32" equals

  • Millimetres: 43.66 mm
  • Decimal inches: 1.7188"
  • Nearest 1/64": 1-23/32"
  • Nearest 1/16" (tape measure): 1-3/4"

0.885" equals

  • Millimetres: 22.48 mm
  • Decimal inches: 0.885"
  • Nearest 1/64": 57/64"
  • Nearest 1/16" (tape measure): 7/8"

22.5 mm equals

  • Nearest 1/64": 57/64"
  • Decimal inches: 0.8858"
  • Nearest 1/16" (tape measure): 7/8"

Back to top ▲