| 221 km * | 0.6213711922 mi | = 137.323033485 mi |
| 1 km |
| Mjerna jedinica | Jedinica za duljinu |
|---|---|
| Nanometar | 2.21e+14 nm |
| mikrometar | 2.21e+11 µm |
| Milimetar | 221000000.0 mm |
| Centimetar | 22100000.0 cm |
| Palac | 8700787.40157 in |
| Stopa | 725065.616798 ft |
| Jard | 241688.538933 yd |
| Metar | 221000.0 m |
| Kilometar | 221.0 km |
| Milja | 137.323033485 mi |
| Nautička milja | 119.330453564 nmi |
