| 21.8 cm * | 0.032808399 ft | = 0.7152230971 ft | 
| 1 cm | 
| Natuurkundige eenheid | Lengte-eenheid | 
|---|---|
| Nanometer | 218000000.0 nm | 
| Micrometer | 218000.0 µm | 
| Millimeter | 218.0 mm | 
| Centimeter | 21.8 cm | 
| Inch | 8.5826771654 in | 
| Voet | 0.7152230971 ft | 
| Yard | 0.238407699 yd | 
| Meter | 0.218 m | 
| Kilometer | 0.000218 km | 
| Mijl | 0.0001354589 mi | 
| Zeemijl | 0.0001177106 nmi | 
