| Harlau to Plombieres | 972.14 mi (1,564.51 km) |
| Harlau to Pont-a-Celles | 1,040.91 mi (1,675.19 km) |
| Harlau to Poperinge | 1,113.19 mi (1,791.51 km) |
| Harlau to Profondeville | 1,017.62 mi (1,637.69 km) |
| Harlau to Putte | 1,031.33 mi (1,659.76 km) |
| Harlau to Puurs | 1,046.76 mi (1,684.59 km) |
| Harlau to Quaregnon | 1,061.93 mi (1,709.01 km) |
| Harlau to Raeren | 964.56 mi (1,552.30 km) |
| Harlau to Ranst | 1,035.93 mi (1,667.17 km) |
| Harlau to Ravels | 1,017.87 mi (1,638.11 km) |
| Harlau to Retie | 1,014.20 mi (1,632.20 km) |
| Harlau to Riemst | 987.78 mi (1,589.68 km) |
| Harlau to Rijkevorsel | 1,027.73 mi (1,653.98 km) |
| Harlau to Rixensart | 1,033.80 mi (1,663.75 km) |
| Harlau to Rochefort | 1,001.62 mi (1,611.96 km) |
