| Barntrup to Novi di Modena | 496.59 mi (799.18 km) |
| Barntrup to Novi Ligure | 499.35 mi (803.63 km) |
| Barntrup to Nuoro | 806.14 mi (1,297.35 km) |
| Barntrup to Occhiobello | 500.72 mi (805.84 km) |
| Barntrup to Oderzo | 455.04 mi (732.31 km) |
| Barntrup to Oggiono | 428.50 mi (689.60 km) |
| Barntrup to Olbia | 764.83 mi (1,230.87 km) |
| Barntrup to Oleggio | 441.58 mi (710.65 km) |
| Barntrup to Olgiate Comasco | 428.42 mi (689.47 km) |
| Barntrup to Olgiate Olona | 438.86 mi (706.27 km) |
| Barntrup to Omegna | 423.04 mi (680.81 km) |
| Barntrup to Opera | 456.02 mi (733.90 km) |
| Barntrup to Oppeano | 471.25 mi (758.40 km) |
| Barntrup to Orbassano | 487.35 mi (784.31 km) |
| Barntrup to Orbetello | 666.63 mi (1,072.83 km) |
