| 668 cm * | 0.01 m | = 6.68 m | 
| 1 cm | 
| Mjerna jedinica | Jedinica za duljinu | 
|---|---|
| Nanometar | 6680000000.0 nm | 
| mikrometar | 6680000.0 µm | 
| Milimetar | 6680.0 mm | 
| Centimetar | 668.0 cm | 
| Palac | 262.992125984 in | 
| Stopa | 21.9160104987 ft | 
| Jard | 7.3053368329 yd | 
| Metar | 6.68 m | 
| Kilometar | 0.00668 km | 
| Milja | 0.0041507596 mi | 
| Nautička milja | 0.0036069114 nmi | 
