| Rietberg to Novi di Modena | 490.39 mi (789.21 km) |
| Rietberg to Novi Ligure | 486.74 mi (783.33 km) |
| Rietberg to Nuoro | 794.58 mi (1,278.74 km) |
| Rietberg to Occhiobello | 496.61 mi (799.22 km) |
| Rietberg to Oderzo | 454.91 mi (732.11 km) |
| Rietberg to Oggiono | 417.79 mi (672.37 km) |
| Rietberg to Olbia | 753.66 mi (1,212.90 km) |
| Rietberg to Oleggio | 428.48 mi (689.56 km) |
| Rietberg to Olgiate Comasco | 416.42 mi (670.16 km) |
| Rietberg to Olgiate Olona | 426.57 mi (686.50 km) |
| Rietberg to Omegna | 409.17 mi (658.49 km) |
| Rietberg to Opera | 444.79 mi (715.82 km) |
| Rietberg to Oppeano | 466.30 mi (750.43 km) |
| Rietberg to Orbassano | 471.12 mi (758.19 km) |
| Rietberg to Orbetello | 659.69 mi (1,061.67 km) |
