| Gretna to Plombieres | 4,892.55 mi (7,873.79 km) |
| Gretna to Pont-a-Celles | 4,834.72 mi (7,780.74 km) |
| Gretna to Poperinge | 4,759.64 mi (7,659.90 km) |
| Gretna to Profondeville | 4,859.10 mi (7,819.97 km) |
| Gretna to Putte | 4,831.20 mi (7,775.07 km) |
| Gretna to Puurs | 4,816.39 mi (7,751.22 km) |
| Gretna to Quaregnon | 4,816.95 mi (7,752.12 km) |
| Gretna to Raeren | 4,900.62 mi (7,886.78 km) |
| Gretna to Ranst | 4,823.82 mi (7,763.19 km) |
| Gretna to Ravels | 4,837.18 mi (7,784.69 km) |
| Gretna to Retie | 4,842.56 mi (7,793.35 km) |
| Gretna to Riemst | 4,876.53 mi (7,848.01 km) |
| Gretna to Rijkevorsel | 4,828.38 mi (7,770.53 km) |
| Gretna to Rixensart | 4,836.24 mi (7,783.17 km) |
| Gretna to Rochefort | 4,878.95 mi (7,851.92 km) |
