| 691 km * | 0.6213711922 mi | = 429.367493836 mi | 
| 1 km | 
| Merska enota | Dolžina | 
|---|---|
| Nanometer | 6.91e+14 nm | 
| Mikrometer | 6.91e+11 µm | 
| Milimeter | 691000000.0 mm | 
| Centimeter | 69100000.0 cm | 
| Palec | 27204724.4094 in | 
| Čevelj | 2267060.36745 ft | 
| Jard | 755686.789151 yd | 
| Meter | 691000.0 m | 
| Kilometer | 691.0 km | 
| Mile | 429.367493836 mi | 
| navtične milje | 373.110151188 nmi | 
