| Merksplas to Oestrich-Winkel | 166.51 mi (267.97 km) |
| Merksplas to Offenburg | 242.36 mi (390.04 km) |
| Merksplas to Oftersheim | 214.13 mi (344.60 km) |
| Merksplas to Ohrdruf | 257.17 mi (413.87 km) |
| Merksplas to Ohringen | 253.41 mi (407.82 km) |
| Merksplas to Olbernhau | 370.96 mi (597.01 km) |
| Merksplas to Olching | 361.26 mi (581.40 km) |
| Merksplas to Oldenburg | 187.37 mi (301.54 km) |
| Merksplas to Oldenburg in Holstein | 322.53 mi (519.06 km) |
| Merksplas to Olfen | 110.81 mi (178.33 km) |
| Merksplas to Olpe | 130.71 mi (210.35 km) |
| Merksplas to Olsberg | 156.03 mi (251.10 km) |
| Merksplas to Oranienburg | 368.03 mi (592.29 km) |
| Merksplas to Ortenberg | 195.53 mi (314.68 km) |
| Merksplas to Oschatz | 355.57 mi (572.24 km) |
