| Boulder to Plombieres | 4,917.97 mi (7,914.71 km) |
| Boulder to Pont-a-Celles | 4,875.17 mi (7,845.82 km) |
| Boulder to Poperinge | 4,804.72 mi (7,732.44 km) |
| Boulder to Profondeville | 4,898.12 mi (7,882.77 km) |
| Boulder to Putte | 4,860.15 mi (7,821.66 km) |
| Boulder to Puurs | 4,847.25 mi (7,800.90 km) |
| Boulder to Quaregnon | 4,861.83 mi (7,824.36 km) |
| Boulder to Raeren | 4,925.74 mi (7,927.21 km) |
| Boulder to Ranst | 4,850.72 mi (7,806.47 km) |
| Boulder to Ravels | 4,858.15 mi (7,818.44 km) |
| Boulder to Retie | 4,864.82 mi (7,829.17 km) |
| Boulder to Riemst | 4,903.05 mi (7,890.70 km) |
| Boulder to Rijkevorsel | 4,851.21 mi (7,807.27 km) |
| Boulder to Rixensart | 4,871.66 mi (7,840.19 km) |
| Boulder to Rochefort | 4,919.20 mi (7,916.69 km) |
