| 664 cm * | 0.032808399 ft | = 21.7847769029 ft | 
| 1 cm | 
| Mõõtühik | Pikkus | 
|---|---|
| nanomeeter | 6640000000.0 nm | 
| Mikromeeter | 6640000.0 µm | 
| Millimeeter | 6640.0 mm | 
| Sentimeeter | 664.0 cm | 
| Toll | 261.417322835 in | 
| Jalg | 21.7847769029 ft | 
| Õu | 7.261592301 yd | 
| Meeter | 6.64 m | 
| Kilomeeter | 0.00664 km | 
| Miil | 0.0041259047 mi | 
| Meremiil | 0.0035853132 nmi | 
