| Karhula to Novi di Modena | 1,263.54 mi (2,033.48 km) |
| Karhula to Novi Ligure | 1,318.62 mi (2,122.11 km) |
| Karhula to Nuoro | 1,584.84 mi (2,550.55 km) |
| Karhula to Occhiobello | 1,247.57 mi (2,007.77 km) |
| Karhula to Oderzo | 1,175.11 mi (1,891.15 km) |
| Karhula to Oggiono | 1,243.32 mi (2,000.93 km) |
| Karhula to Olbia | 1,543.21 mi (2,483.56 km) |
| Karhula to Oleggio | 1,271.19 mi (2,045.78 km) |
| Karhula to Olgiate Comasco | 1,252.27 mi (2,015.34 km) |
| Karhula to Olgiate Olona | 1,263.28 mi (2,033.06 km) |
| Karhula to Omegna | 1,259.89 mi (2,027.60 km) |
| Karhula to Opera | 1,270.68 mi (2,044.95 km) |
| Karhula to Oppeano | 1,232.26 mi (1,983.13 km) |
| Karhula to Orbassano | 1,333.06 mi (2,145.36 km) |
| Karhula to Orbetello | 1,412.09 mi (2,272.53 km) |
