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42 Millimeters to Feet

42 millimeters equals 0.1378 feet. Use the formula, worked example, and conversion table below to check the math.

42 mm = 0.1378 ft
mm ÷ 304.8 = ft
Try: 37 mm to ft 41 mm to ft 43 mm to ft 47 mm to ft
42 mm is also
42 mm = 0.000042 km 42 mm = 0.0000260976 mi 42 mm = 0.042 m 42 mm = 1.65 in 42 mm = 4.2 cm 42 mm = 0.0459 yd
mm
0.1378 ft

Step-by-Step Calculation

mm ÷ 304.8 = ft
  1. Start with 42 mm
  2. Divide by 304.8: 42 ÷ 304.8 = 0.1378
  3. Result: 42 mm = 0.1378 ft

This conversion factor (0.00328084) is the same for every millimeter to foot calculation.

Millimeter to Foot Conversion Table

Millimeters (mm) Feet (ft)
1 mm 0.003281 ft
2 mm 0.006562 ft
5 mm 0.0164 ft
10 mm 0.0328 ft
15 mm 0.0492 ft
20 mm 0.0656 ft
25 mm 0.082 ft
42 mm 0.1378 ft
50 mm 0.164 ft
75 mm 0.2461 ft
100 mm 0.3281 ft
250 mm 0.8202 ft
500 mm 1.64 ft
1,000 mm 3.28 ft
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Frequently Asked Questions

42 millimeters equals 0.1378 feet.
The formula is: mm ÷ 304.8 = ft. See the mm to ft formula page for worked examples.
Use the feet to millimeters converter. The reverse formula is: ft × 304.8 = mm.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (mm ÷ 304.8 = ft) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026