| Tortona to Orthez | 486.87 mi (783.54 km) |
| Tortona to Orvault | 528.30 mi (850.22 km) |
| Tortona to Osny | 430.59 mi (692.96 km) |
| Tortona to Ostwald | 258.48 mi (415.99 km) |
| Tortona to Ouistreham | 524.81 mi (844.60 km) |
| Tortona to Oullins | 205.14 mi (330.13 km) |
| Tortona to Outreau | 523.92 mi (843.17 km) |
| Tortona to Oyonnax | 181.52 mi (292.12 km) |
| Tortona to Ozoir-la-Ferriere | 396.61 mi (638.28 km) |
| Tortona to Pace | 552.91 mi (889.82 km) |
| Tortona to Palaiseau | 409.24 mi (658.60 km) |
| Tortona to Pamiers | 380.73 mi (612.73 km) |
| Tortona to Panazol | 372.38 mi (599.29 km) |
| Tortona to Pantin | 411.57 mi (662.36 km) |
| Tortona to Paray-le-Monial | 253.08 mi (407.29 km) |
