20 cm to mm
20 cm = 200 mm
20 centimeters equals 200 millimeters.
How to convert 20 cm to mm
Use the formula mm = cm × 10:
mm = 20 × 10mm = 200
So 20 cm = 200 mm.
Rounded values and quick estimate
- Rounded to a whole number: 200 mm
- Rounded to one decimal place: 200 mm
- Conversion factor: 1 centimeter = 10 millimeters
This conversion is exact, so there is no need to estimate: just multiply by 10.
20 cm in other units
- Millimeters
- 200 mm
- Meters
- 0.2 m
- Kilometers
- 0.0002 km
- Inches
- 7.87 in
- Feet
- 0.6562 ft
- Yards
- 0.2187 yd
- Miles
- 0.000124 mi
- Micrometers
- 200000 µm
- Hands
- 1.97 hh
- Nautical miles
- 0.000108 nmi
- Mils (thou)
- 7874.02 mil
20 cm and nearby values
| Centimeters | Millimeters |
|---|---|
| 16 cm | 160 mm |
| 17 cm | 170 mm |
| 18 cm | 180 mm |
| 19 cm | 190 mm |
| 20 cm | 200 mm |
| 21 cm | 210 mm |
| 22 cm | 220 mm |
| 23 cm | 230 mm |
| 24 cm | 240 mm |
About centimeters and millimeters
A centimeter is one hundredth of a meter. It is the everyday metric unit for body height, clothing and short lengths.
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 cm in mm?
20 centimeters is 200 millimeters (20 cm = 200 mm).
How do you convert 20 cm to mm?
Apply mm = cm × 10: mm = 20 × 10, mm = 200.
How many centimeters is 200 mm?
200 mm is about 20 centimeters.