| Karlovy Vary to Novi di Modena | 380.01 mi (611.57 km) |
| Karlovy Vary to Novi Ligure | 423.29 mi (681.23 km) |
| Karlovy Vary to Nuoro | 706.05 mi (1,136.28 km) |
| Karlovy Vary to Occhiobello | 371.71 mi (598.20 km) |
| Karlovy Vary to Oderzo | 307.95 mi (495.60 km) |
| Karlovy Vary to Oggiono | 347.66 mi (559.50 km) |
| Karlovy Vary to Olbia | 663.69 mi (1,068.11 km) |
| Karlovy Vary to Oleggio | 375.22 mi (603.87 km) |
| Karlovy Vary to Olgiate Comasco | 356.28 mi (573.38 km) |
| Karlovy Vary to Olgiate Olona | 367.30 mi (591.11 km) |
| Karlovy Vary to Omegna | 364.50 mi (586.61 km) |
| Karlovy Vary to Opera | 375.32 mi (604.02 km) |
| Karlovy Vary to Oppeano | 349.56 mi (562.57 km) |
| Karlovy Vary to Orbassano | 437.92 mi (704.76 km) |
| Karlovy Vary to Orbetello | 544.07 mi (875.60 km) |
