| Helmstedt to Orthez | 812.22 mi (1,307.14 km) |
| Helmstedt to Orvault | 658.46 mi (1,059.69 km) |
| Helmstedt to Osny | 448.61 mi (721.97 km) |
| Helmstedt to Ostwald | 292.57 mi (470.84 km) |
| Helmstedt to Ouistreham | 532.35 mi (856.73 km) |
| Helmstedt to Oullins | 530.26 mi (853.37 km) |
| Helmstedt to Outreau | 418.45 mi (673.43 km) |
| Helmstedt to Oyonnax | 477.83 mi (768.99 km) |
| Helmstedt to Ozoir-la-Ferriere | 436.45 mi (702.40 km) |
| Helmstedt to Pace | 630.75 mi (1,015.09 km) |
| Helmstedt to Palaiseau | 455.06 mi (732.34 km) |
| Helmstedt to Pamiers | 765.18 mi (1,231.44 km) |
| Helmstedt to Panazol | 621.86 mi (1,000.79 km) |
| Helmstedt to Pantin | 442.01 mi (711.35 km) |
| Helmstedt to Paray-le-Monial | 505.06 mi (812.82 km) |
