0.042 Millimeters to Centimeters

0.042 mm = 0.0042 cm

Calculation: cm = 0.042 mm × 0.1 = 0.0042 cm

Millimeter to Centimeter Converter

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How long is 0.042 mm?

0.042 mm (0 cm) is a very small measurement — thinner than a pencil lead.

0.042 mm on the centimeter scale

mm00.010.020.030.040.05cm00.0010.0020.0030.0040.005

0.042 mm = 0.0042 cm

How to Convert Millimeter to Centimeter

1 millimeter = 0.1 centimeters exact

Centimeter = Millimeter × 0.1

Example: 0.042 mm × 0.1 = 0.0042 cm

Reverse Conversion

To convert centimeters back to millimeters:

  • Remember, 1 centimeter equals 10 millimeters.
  • To convert 0.0042 cm to mm, multiply 0.0042 x 10, resulting in 0.042 mm.

exact This conversion factor is exact by international definition.

0.042 mm is also equal to:

  • 0.0016535 inch
  • 0.0001378 feet
About these units

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

Centimeter: Metric unit equal to one hundredth (1/100) of a meter.

Frequently Asked Questions

How much is 0.042 millimeters in centimeters?

0.042 millimeters equals 0.0042 centimeters. This is calculated by multiplying 0.042 by the conversion factor 0.1.

What does 0.042 millimeters look like in centimeters?

0.042 millimeters (0.0042 centimeters) is thinner than a credit card edge (0.76mm).

How do you calculate 0.042 millimeters to centimeters?

Multiply 0.042 by the conversion factor 0.1. The calculation is 0.042 × 0.1 = 0.0042 centimeters. This factor is defined by international measurement standards.

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0.042 millimeters = 0.0042 centimeters
0.042 millimeters = 0.0042 centimeters — conversion chart

Nearby Conversions

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For general conversions between millimeters and centimeters, see the millimeters to centimeters 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.