8.004 Millimeters to Inches

8.004 mm ≈ 0.31512 in

Closest fraction: 516″(0.3125 in — differs by less than 1%)

Calculation: in = 8.004 mm × 0.0393701 ≈ 0.31512 in

Millimeter to Inch Converter

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How long is 8.004 mm?

8.004 mm (0.8 cm) is comparable to the width of a fingernail or a small button.

8.004 mm on the inch scale

mm0246810in00.050.10.150.20.250.30.35

8.004 mm = 0.3151 in

How to Convert Millimeter to Inch

1 millimeter = 0.0393701 inches exact

Inch = Millimeter × 0.0393701

Example: 8.004 mm × 0.0393701 = 0.31512 in

Reverse Conversion

To convert inches back to millimeters:

  • Remember, 1 inch equals 25.4 millimeters.
  • To convert 0.31512 in to mm, multiply 0.31512 x 25.4, resulting in 8.004 mm.

exact This conversion factor is exact by international definition.

8.004 mm is also equal to:

  • 0.8004 centimeter
  • 0.008004 meter
  • 0.02626 feet
  • 0.0087533 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 8.004 millimeters in inches?

8.004 millimeters equals 0.31512 inches. This is calculated by multiplying 8.004 by the conversion factor 0.0393701.

What does 8.004 millimeters look like in inches?

8.004 millimeters (0.31512 inches) is similar to a fingernail width or a small screw head.

How do you calculate 8.004 millimeters to inches?

Multiply 8.004 by the conversion factor 0.0393701. The calculation is 8.004 × 0.0393701 = 0.31512 inches. This factor is defined by international measurement standards.

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8.004 millimeters = 0.315118 inches
8.004 millimeters = 0.315118 inches — conversion chart

Nearby Conversions

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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.