| Merchtem to Novi di Modena | 520.47 mi (837.62 km) |
| Merchtem to Novi Ligure | 477.77 mi (768.90 km) |
| Merchtem to Nuoro | 775.51 mi (1,248.06 km) |
| Merchtem to Occhiobello | 538.07 mi (865.94 km) |
| Merchtem to Oderzo | 521.04 mi (838.53 km) |
| Merchtem to Oggiono | 428.03 mi (688.85 km) |
| Merchtem to Olbia | 738.57 mi (1,188.62 km) |
| Merchtem to Oleggio | 422.22 mi (679.49 km) |
| Merchtem to Olgiate Comasco | 418.67 mi (673.79 km) |
| Merchtem to Olgiate Olona | 425.80 mi (685.25 km) |
| Merchtem to Omegna | 400.14 mi (643.96 km) |
| Merchtem to Opera | 448.70 mi (722.11 km) |
| Merchtem to Oppeano | 505.51 mi (813.54 km) |
| Merchtem to Orbassano | 439.07 mi (706.61 km) |
| Merchtem to Orbetello | 674.93 mi (1,086.20 km) |
