0.42 Millimeters to Feet

0.42 mm ≈ 0.001378 ft

Calculation: ft = 0.42 mm × 0.00328084 ≈ 0.001378 ft

Millimeter to Foot Converter

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How long is 0.42 mm?

0.42 mm (0.04 cm) is a very small measurement — thinner than a pencil lead.

0.42 mm on the feet scale

mm00.10.20.30.40.5ft00.00050.0010.0015

0.42 mm = 0.001378 ft

How to Convert Millimeter to Feet

1 millimeter = 0.00328084 feet

Feet = Millimeter × 0.00328084

Example: 0.42 mm × 0.00328084 = 0.001378 ft

Reverse Conversion

To convert feet back to millimeters:

  • Remember, 1 foot equals 304.8 millimeters.
  • To convert 0.001378 ft to mm, multiply 0.001378 x 304.8, resulting in 0.42 mm.

0.42 mm is also equal to:

Frequently Asked Questions

How much is 0.42 millimeters in feet?

0.42 millimeters equals 0.001378 feet. This is calculated by multiplying 0.42 by the conversion factor 0.00328084.

What does 0.42 millimeters look like in feet?

0.42 millimeters (0.001378 feet) is thinner than a credit card edge (0.76mm).

How do you calculate 0.42 millimeters to feet?

Multiply 0.42 by the conversion factor 0.00328084. The calculation is 0.42 × 0.00328084 = 0.001378 feet. This factor is defined by international measurement standards.

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0.42 millimeters = 0.00137795 feet
0.42 millimeters = 0.00137795 feet — conversion chart

Nearby Conversions

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