| Castanet-Tolosan to Waregem | 516.63 mi (831.44 km) |
| Castanet-Tolosan to Waremme | 526.57 mi (847.43 km) |
| Castanet-Tolosan to Waterloo | 515.60 mi (829.78 km) |
| Castanet-Tolosan to Wavre | 518.36 mi (834.22 km) |
| Castanet-Tolosan to Welkenraedt | 536.40 mi (863.26 km) |
| Castanet-Tolosan to Wemmel | 527.90 mi (849.57 km) |
| Castanet-Tolosan to Wervik | 507.07 mi (816.05 km) |
| Castanet-Tolosan to Westerlo | 546.71 mi (879.84 km) |
| Castanet-Tolosan to Wetteren | 529.00 mi (851.35 km) |
| Castanet-Tolosan to Wevelgem | 510.01 mi (820.78 km) |
| Castanet-Tolosan to Wezembeek-Oppem | 524.78 mi (844.55 km) |
| Castanet-Tolosan to Wichelen | 529.84 mi (852.69 km) |
| Castanet-Tolosan to Wielsbeke | 518.28 mi (834.09 km) |
| Castanet-Tolosan to Wijnegem | 551.70 mi (887.88 km) |
| Castanet-Tolosan to Willebroek | 538.66 mi (866.89 km) |
