| Carrick on Shannon to Opwijk | 555.48 mi (893.97 km) |
| Carrick on Shannon to Ostend | 498.41 mi (802.11 km) |
| Carrick on Shannon to Oud-Heverlee | 578.45 mi (930.92 km) |
| Carrick on Shannon to Oud-Turnhout | 576.72 mi (928.15 km) |
| Carrick on Shannon to Oudenaarde | 536.58 mi (863.54 km) |
| Carrick on Shannon to Oudenburg | 502.84 mi (809.25 km) |
| Carrick on Shannon to Oupeye | 620.46 mi (998.54 km) |
| Carrick on Shannon to Overijse | 574.82 mi (925.09 km) |
| Carrick on Shannon to Overpelt | 596.66 mi (960.23 km) |
| Carrick on Shannon to Paal | 592.07 mi (952.85 km) |
| Carrick on Shannon to Peer | 600.47 mi (966.36 km) |
| Carrick on Shannon to Pepinster | 631.66 mi (1,016.56 km) |
| Carrick on Shannon to Peruwelz | 547.13 mi (880.53 km) |
| Carrick on Shannon to Perwez | 590.84 mi (950.86 km) |
| Carrick on Shannon to Philippeville | 594.96 mi (957.50 km) |
