20 Mils to mm
20 mil = 0.508 mm
20 mils (thou) equals 0.508 millimeters.
How to convert 20 mil to mm
Use the formula mm = mil × 0.0254:
mm = 20 × 0.0254mm = 0.508
So 20 mil = 0.508 mm.
Rounded values and quick estimate
- Rounded to a whole number: 1 mm
- Rounded to one decimal place: 0.5 mm
- Conversion factor: 1 mil (thou) = 0.0254 millimeters
This conversion is exact, so there is no need to estimate: just multiply by 0.0254.
20 Mils in other units
- Millimeters
- 0.508 mm
- Centimeters
- 0.0508 cm
- Meters
- 0.000508 m
- Inches
- 0.02 in
- Feet
- 0.001667 ft
- Yards
- 0.000556 yd
- Micrometers
- 508 µm
- Hands
- 0.005 hh
20 mil and nearby values
| Mils (thou) | Millimeters |
|---|---|
| 16 mil | 0.4064 mm |
| 17 mil | 0.4318 mm |
| 18 mil | 0.4572 mm |
| 19 mil | 0.4826 mm |
| 20 mil | 0.508 mm |
| 21 mil | 0.5334 mm |
| 22 mil | 0.5588 mm |
| 23 mil | 0.5842 mm |
| 24 mil | 0.6096 mm |
About mils (thou) and millimeters
A mil (or thou) is one thousandth of an inch (0.0254 mm). It is used for plastic sheeting, coatings and wire insulation thickness.
A millimeter is one thousandth of a meter (0.1 cm). It is used for small, precise measurements like rainfall, screws and paper thickness.
Related conversions
Frequently asked questions
What is 20 Mils in mm?
20 mils (thou) is 0.508 millimeters (20 mil = 0.508 mm).
How do you convert 20 mil to mm?
Apply mm = mil × 0.0254: mm = 20 × 0.0254, mm = 0.508.
How many mils (thou) is 0.508 mm?
0.508 mm is about 20 mils (thou).