| 664 cm * | 0.032808399 ft | = 21.7847769029 ft | 
| 1 cm | 
| Mjerna jedinica | Duljine | 
|---|---|
| Nanometar | 6640000000.0 nm | 
| mikrometar | 6640000.0 µm | 
| Milimetar | 6640.0 mm | 
| Centimetar | 664.0 cm | 
| Palac | 261.417322835 in | 
| Stopa | 21.7847769029 ft | 
| Jard | 7.261592301 yd | 
| Metar | 6.64 m | 
| Kilometar | 0.00664 km | 
| Milja | 0.0041259047 mi | 
| Nautička milja | 0.0035853132 nmi | 
