| Humlebaek to Novi di Modena | 767.98 mi (1,235.95 km) |
| Humlebaek to Novi Ligure | 791.03 mi (1,273.05 km) |
| Humlebaek to Nuoro | 1,090.60 mi (1,755.15 km) |
| Humlebaek to Occhiobello | 763.87 mi (1,229.32 km) |
| Humlebaek to Oderzo | 703.39 mi (1,132.00 km) |
| Humlebaek to Oggiono | 716.52 mi (1,153.12 km) |
| Humlebaek to Olbia | 1,048.42 mi (1,687.27 km) |
| Humlebaek to Oleggio | 735.49 mi (1,183.66 km) |
| Humlebaek to Olgiate Comasco | 719.88 mi (1,158.54 km) |
| Humlebaek to Olgiate Olona | 730.83 mi (1,176.15 km) |
| Humlebaek to Omegna | 719.06 mi (1,157.22 km) |
| Humlebaek to Opera | 744.85 mi (1,198.72 km) |
| Humlebaek to Oppeano | 738.92 mi (1,189.17 km) |
| Humlebaek to Orbassano | 787.45 mi (1,267.28 km) |
| Humlebaek to Orbetello | 936.09 mi (1,506.49 km) |
