| 20.1 mm * | 0.1 cm | = 2.01 cm | 
| 1 mm | 
| Natuurkundige eenheid | Lengte | 
|---|---|
| Nanometer | 20100000.0 nm | 
| Micrometer | 20100.0 µm | 
| Millimeter | 20.1 mm | 
| Centimeter | 2.01 cm | 
| Inch | 0.7913385827 in | 
| Voet | 0.0659448819 ft | 
| Yard | 0.0219816273 yd | 
| Meter | 0.0201 m | 
| Kilometer | 2.01e-05 km | 
| Mijl | 1.24896e-05 mi | 
| Zeemijl | 1.08531e-05 nmi | 
