| Harrow on the Hill to Plombieres | 278.21 mi (447.74 km) |
| Harrow on the Hill to Pont-a-Celles | 216.33 mi (348.15 km) |
| Harrow on the Hill to Poperinge | 141.18 mi (227.21 km) |
| Harrow on the Hill to Profondeville | 240.73 mi (387.43 km) |
| Harrow on the Hill to Putte | 217.39 mi (349.85 km) |
| Harrow on the Hill to Puurs | 202.01 mi (325.10 km) |
| Harrow on the Hill to Quaregnon | 198.61 mi (319.64 km) |
| Harrow on the Hill to Raeren | 286.14 mi (460.50 km) |
| Harrow on the Hill to Ranst | 212.02 mi (341.21 km) |
| Harrow on the Hill to Ravels | 229.90 mi (369.98 km) |
| Harrow on the Hill to Retie | 233.52 mi (375.82 km) |
| Harrow on the Hill to Riemst | 262.19 mi (421.95 km) |
| Harrow on the Hill to Rijkevorsel | 220.00 mi (354.05 km) |
| Harrow on the Hill to Rixensart | 218.89 mi (352.27 km) |
| Harrow on the Hill to Rochefort | 260.50 mi (419.23 km) |
