| Troisdorf to Orthez | 627.77 mi (1,010.30 km) |
| Troisdorf to Orvault | 466.47 mi (750.71 km) |
| Troisdorf to Osny | 256.89 mi (413.42 km) |
| Troisdorf to Ostwald | 158.47 mi (255.03 km) |
| Troisdorf to Ouistreham | 345.48 mi (556.00 km) |
| Troisdorf to Oullins | 368.57 mi (593.15 km) |
| Troisdorf to Outreau | 243.15 mi (391.31 km) |
| Troisdorf to Oyonnax | 322.43 mi (518.91 km) |
| Troisdorf to Ozoir-la-Ferriere | 244.21 mi (393.02 km) |
| Troisdorf to Pace | 440.82 mi (709.43 km) |
| Troisdorf to Palaiseau | 262.78 mi (422.91 km) |
| Troisdorf to Pamiers | 592.36 mi (953.31 km) |
| Troisdorf to Panazol | 436.03 mi (701.72 km) |
| Troisdorf to Pantin | 249.79 mi (402.00 km) |
| Troisdorf to Paray-le-Monial | 331.86 mi (534.08 km) |
