0.508 Millimeters to Inches

0.508 mm = 0.02 in

Closest fraction: 164″(0.01563 in — approximate, differs by ~22%)

Calculation: in = 0.508 mm × 0.0393701 = 0.02 in

Millimeter to Inch Converter

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How long is 0.508 mm?

0.508 mm (0.05 cm) is a very small measurement — thinner than a pencil lead.

0.508 mm on the inch scale

mm00.20.40.60.81in00.0050.010.0150.020.0250.030.035

0.508 mm = 0.02 in

How to Convert Millimeter to Inch

1 millimeter = 0.0393701 inches exact

Inch = Millimeter × 0.0393701

Example: 0.508 mm × 0.0393701 = 0.02 in

Reverse Conversion

To convert inches back to millimeters:

  • Remember, 1 inch equals 25.4 millimeters.
  • To convert 0.02 in to mm, multiply 0.02 x 25.4, resulting in 0.508 mm.

exact This conversion factor is exact by international definition.

0.508 mm is also equal to:

  • 0.0508 centimeter
  • 0.000508 meter
  • 0.0016667 feet
  • 0.00055556 yard
About these units

Millimeter: Metric unit equal to one thousandth (1/1000) of a meter.

Inch: Imperial/US customary unit standardized as exactly 25.4 millimeters since 1959.

Frequently Asked Questions

How much is 0.508 millimeters in inches?

0.508 millimeters equals 0.02 inches. This is calculated by multiplying 0.508 by the conversion factor 0.0393701.

What does 0.508 millimeters look like in inches?

0.508 millimeters (0.02 inches) is thinner than a credit card edge (0.76mm).

How do you calculate 0.508 millimeters to inches?

Multiply 0.508 by the conversion factor 0.0393701. The calculation is 0.508 × 0.0393701 = 0.02 inches. This factor is defined by international measurement standards.

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0.508 millimeters = 0.02 inches
0.508 millimeters = 0.02 inches — conversion chart

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For general conversions between millimeters and inches, see the millimeters to inches converter.

Also convert Millimeters to:

Conversion factors verified against NIST, BIPM, ISO 80000-3 1 inch = 2.54 cm by international agreement (1959). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.