| Hammersmith to Noventa Vicentina | 687.82 mi (1,106.95 km) |
| Hammersmith to Novi di Modena | 684.53 mi (1,101.65 km) |
| Hammersmith to Novi Ligure | 622.84 mi (1,002.36 km) |
| Hammersmith to Nuoro | 896.83 mi (1,443.31 km) |
| Hammersmith to Occhiobello | 706.72 mi (1,137.35 km) |
| Hammersmith to Oderzo | 700.50 mi (1,127.34 km) |
| Hammersmith to Oggiono | 587.91 mi (946.15 km) |
| Hammersmith to Olbia | 864.43 mi (1,391.17 km) |
| Hammersmith to Oleggio | 573.57 mi (923.08 km) |
| Hammersmith to Olgiate Comasco | 575.10 mi (925.54 km) |
| Hammersmith to Olgiate Olona | 579.95 mi (933.34 km) |
| Hammersmith to Omegna | 551.98 mi (888.33 km) |
| Hammersmith to Opera | 603.59 mi (971.39 km) |
| Hammersmith to Oppeano | 674.62 mi (1,085.69 km) |
| Hammersmith to Orbassano | 572.27 mi (920.99 km) |
