42 Mils to Inches

42 mil = 0.042 in

Closest fraction: 364″(0.04688 in — approximate, differs by ~12%)

Calculation: in = 42 mil × 0.001 = 0.042 in

Mil to Inch Converter

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How long is 42 mil?

42 mil (0.11 cm) is a very small measurement — thinner than a pencil lead.

42 mil on the inch scale

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42 mil = 0.042 in

Did you know? Thickness of a credit card is 0.1 cm.

A standard credit card is about 0.76 mm (0.076 cm) thick — less than 1 millimeter.

How to Convert Mil to Inch

1 mil = 0.001 inches

Inch = Mil × 0.001

Example: 42 mil × 0.001 = 0.042 in

Reverse Conversion

To convert inches back to mils:

  • Remember, 1 inch equals 1000 mils.
  • To convert 0.042 in to mil, multiply 0.042 x 1000, resulting in 42 mil.

42 mil is also equal to:

  • 1.0668 millimeter
  • 0.10668 centimeter
  • 0.0010668 meter
  • 0.0035 feet
  • 0.0011667 yard

Frequently Asked Questions

How much is 42 mils in inches?

42 mils equals 0.042 inches. This is calculated by multiplying 42 by the conversion factor 0.001.

What does 42 mils look like in inches?

42 mils corresponds to 0.042 inches, a conversion commonly used in construction, travel, and manufacturing.

How do you calculate 42 mils to inches?

Multiply 42 by the conversion factor 0.001. The calculation is 42 × 0.001 = 0.042 inches. This factor is defined by international measurement standards.

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42 mils = 0.042 inches
42 mils = 0.042 inches — conversion chart

Nearby Conversions

32 mils0.032 inches 33 mils0.033 inches 34 mils0.034 inches 35 mils0.035 inches 36 mils0.036 inches 37 mils0.037 inches 38 mils0.038 inches 39 mils0.039 inches 40 mils0.04 inches 41 mils0.041 inches 43 mils0.043 inches 44 mils0.044 inches 45 mils0.045 inches 46 mils0.046 inches 47 mils0.047 inches 48 mils0.048 inches 49 mils0.049 inches 50 mils0.05 inches 51 mils0.051 inches 52 mils0.052 inches

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

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.