20 cm to mm
20 centimeters equals 200 millimeters.
Chinese version: 20 厘米等于多少毫米
Result
20 cm = 200 mm
Formula: 20 × 10 = 200
Conversion steps
- The conversion factor: 1 centimeter = 10 millimeters.
- Multiply: 20 × 10 = 200 millimeters.
- So 20 centimeter = 200 millimeters (20 cm = 200 mm).
Nearby values
Frequently asked questions
Multiply 20 by the conversion factor 10: 20 × 10 = 200 mm.
1 centimeter = 10 millimeters. For the reverse conversion, 1 millimeter = 0.1 centimeters.
Yes — the factor 10 follows the international (SI) definition of these units, so 20 cm = 200 mm is exact to the displayed precision.