| Mery-sur-Oise to Oestrich-Winkel | 268.53 mi (432.16 km) |
| Mery-sur-Oise to Offenburg | 264.89 mi (426.30 km) |
| Mery-sur-Oise to Oftersheim | 289.45 mi (465.83 km) |
| Mery-sur-Oise to Ohrdruf | 398.80 mi (641.81 km) |
| Mery-sur-Oise to Ohringen | 330.65 mi (532.13 km) |
| Mery-sur-Oise to Olbernhau | 508.12 mi (817.75 km) |
| Mery-sur-Oise to Olching | 420.90 mi (677.38 km) |
| Mery-sur-Oise to Oldenburg | 384.27 mi (618.42 km) |
| Mery-sur-Oise to Oldenburg in Holstein | 518.64 mi (834.67 km) |
| Mery-sur-Oise to Olfen | 293.15 mi (471.79 km) |
| Mery-sur-Oise to Olpe | 284.50 mi (457.86 km) |
| Mery-sur-Oise to Olsberg | 319.99 mi (514.97 km) |
| Mery-sur-Oise to Oranienburg | 544.00 mi (875.48 km) |
| Mery-sur-Oise to Ortenberg | 319.49 mi (514.17 km) |
| Mery-sur-Oise to Oschatz | 506.73 mi (815.50 km) |
