| Piqua to Plombieres | 4,156.70 mi (6,689.56 km) |
| Piqua to Pont-a-Celles | 4,102.16 mi (6,601.80 km) |
| Piqua to Poperinge | 4,027.63 mi (6,481.85 km) |
| Piqua to Profondeville | 4,126.39 mi (6,640.78 km) |
| Piqua to Putte | 4,095.72 mi (6,591.43 km) |
| Piqua to Puurs | 4,081.26 mi (6,568.15 km) |
| Piqua to Quaregnon | 4,085.38 mi (6,574.78 km) |
| Piqua to Raeren | 4,164.76 mi (6,702.53 km) |
| Piqua to Ranst | 4,087.77 mi (6,578.64 km) |
| Piqua to Ravels | 4,099.80 mi (6,597.99 km) |
| Piqua to Retie | 4,105.53 mi (6,607.22 km) |
| Piqua to Riemst | 4,140.82 mi (6,664.01 km) |
| Piqua to Rijkevorsel | 4,091.38 mi (6,584.44 km) |
| Piqua to Rixensart | 4,102.42 mi (6,602.20 km) |
| Piqua to Rochefort | 4,146.71 mi (6,673.49 km) |
