| 642 cm * | 0.3937007874 in | = 252.755905512 in | 
| 1 cm | 
| Satuan | Panjang | 
|---|---|
| Nanometer | 6420000000.0 nm | 
| Mikrometer | 6420000.0 µm | 
| Milimeter | 6420.0 mm | 
| Sentimeter | 642.0 cm | 
| Inci | 252.755905512 in | 
| Kaki | 21.062992126 ft | 
| Yard | 7.0209973753 yd | 
| Meter | 6.42 m | 
| Kilometer | 0.00642 km | 
| mil | 0.0039892031 mi | 
| Mil laut | 0.0034665227 nmi | 
