| Chamonix-Mont-Blanc to Navodari | 1,062.51 mi (1,709.95 km) |
| Chamonix-Mont-Blanc to Negresti-Oas | 791.53 mi (1,273.84 km) |
| Chamonix-Mont-Blanc to Nehoiu | 937.45 mi (1,508.68 km) |
| Chamonix-Mont-Blanc to Ocna Mures | 812.28 mi (1,307.24 km) |
| Chamonix-Mont-Blanc to Odobesti | 969.59 mi (1,560.41 km) |
| Chamonix-Mont-Blanc to Odorheiu Secuiesc | 881.24 mi (1,418.22 km) |
| Chamonix-Mont-Blanc to Oltenita | 971.45 mi (1,563.39 km) |
| Chamonix-Mont-Blanc to Onesti | 951.36 mi (1,531.06 km) |
| Chamonix-Mont-Blanc to Oradea | 719.19 mi (1,157.43 km) |
| Chamonix-Mont-Blanc to Orastie | 784.08 mi (1,261.86 km) |
| Chamonix-Mont-Blanc to Oravita | 719.31 mi (1,157.61 km) |
| Chamonix-Mont-Blanc to Orsova | 757.60 mi (1,219.25 km) |
| Chamonix-Mont-Blanc to Otelu Rosu | 746.26 mi (1,200.99 km) |
| Chamonix-Mont-Blanc to Otopeni | 936.73 mi (1,507.52 km) |
| Chamonix-Mont-Blanc to Ovidiu | 1,060.79 mi (1,707.18 km) |
