| Clacton-on-Sea to Nasaud | 1,083.19 mi (1,743.22 km) |
| Clacton-on-Sea to Navodari | 1,359.29 mi (2,187.56 km) |
| Clacton-on-Sea to Negresti-Oas | 1,024.73 mi (1,649.14 km) |
| Clacton-on-Sea to Nehoiu | 1,225.62 mi (1,972.45 km) |
| Clacton-on-Sea to Ocna Mures | 1,087.99 mi (1,750.95 km) |
| Clacton-on-Sea to Odobesti | 1,243.52 mi (2,001.25 km) |
| Clacton-on-Sea to Odorheiu Secuiesc | 1,151.08 mi (1,852.49 km) |
| Clacton-on-Sea to Oltenita | 1,285.71 mi (2,069.15 km) |
| Clacton-on-Sea to Onesti | 1,214.83 mi (1,955.07 km) |
| Clacton-on-Sea to Oradea | 984.78 mi (1,584.86 km) |
| Clacton-on-Sea to Orastie | 1,078.72 mi (1,736.04 km) |
| Clacton-on-Sea to Oravita | 1,046.20 mi (1,683.70 km) |
| Clacton-on-Sea to Orsova | 1,087.22 mi (1,749.71 km) |
| Clacton-on-Sea to Otelu Rosu | 1,055.54 mi (1,698.73 km) |
| Clacton-on-Sea to Otopeni | 1,244.78 mi (2,003.27 km) |
