| 642 cm * | 0.032808399 ft | = 21.062992126 ft | 
| 1 cm | 
| Matavimo vienetas | Ilgiai | 
|---|---|
| Nanometras | 6420000000.0 nm | 
| Mikrometras | 6420000.0 µm | 
| Milimetras | 6420.0 mm | 
| Centimetras | 642.0 cm | 
| Colis | 252.755905512 in | 
| Pėda | 21.062992126 ft | 
| Yard | 7.0209973753 yd | 
| Metras | 6.42 m | 
| Kilometras | 0.00642 km | 
| Mylia | 0.0039892031 mi | 
| Jūrmylė | 0.0034665227 nmi | 
