| 646 mm * | 0.0393700787 in | = 25.4330708661 in | 
| 1 mm | 
| Unità | Unità ta 'tul | 
|---|---|
| Nanometru | 646000000.0 nm | 
| Mikrometru | 646000.0 µm | 
| Millimetru | 646.0 mm | 
| ċentimetru | 64.6 cm | 
| Pulzier | 25.4330708661 in | 
| Piedi | 2.1194225722 ft | 
| Yard | 0.7064741907 yd | 
| Metru | 0.646 m | 
| Kilometru | 0.000646 km | 
| Mil | 0.0004014058 mi | 
| Mil nawtiku | 0.0003488121 nmi | 
