| Bad Harzburg to Orthez | 781.90 mi (1,258.35 km) |
| Bad Harzburg to Orvault | 630.84 mi (1,015.24 km) |
| Bad Harzburg to Osny | 421.22 mi (677.89 km) |
| Bad Harzburg to Ostwald | 262.25 mi (422.04 km) |
| Bad Harzburg to Ouistreham | 507.04 mi (816.00 km) |
| Bad Harzburg to Oullins | 499.73 mi (804.23 km) |
| Bad Harzburg to Outreau | 395.67 mi (636.76 km) |
| Bad Harzburg to Oyonnax | 447.40 mi (720.02 km) |
| Bad Harzburg to Ozoir-la-Ferriere | 408.12 mi (656.81 km) |
| Bad Harzburg to Pace | 604.39 mi (972.67 km) |
| Bad Harzburg to Palaiseau | 426.94 mi (687.10 km) |
| Bad Harzburg to Pamiers | 734.56 mi (1,182.16 km) |
| Bad Harzburg to Panazol | 591.73 mi (952.29 km) |
| Bad Harzburg to Pantin | 414.08 mi (666.41 km) |
| Bad Harzburg to Paray-le-Monial | 474.46 mi (763.57 km) |
