| Willebroek to Robertsville (New Jersey) | 3,682.24 mi (5,926.00 km) |
| Willebroek to Robinson (Texas) | 5,015.92 mi (8,072.34 km) |
| Willebroek to Robstown (Texas) | 5,231.18 mi (8,418.78 km) |
| Willebroek to Rochester (Michigan) | 3,924.09 mi (6,315.21 km) |
| Willebroek to Rochester (Minnesota) | 4,206.36 mi (6,769.48 km) |
| Willebroek to Rochester (New Hampshire) | 3,421.52 mi (5,506.40 km) |
| Willebroek to Rochester (New York) | 3,690.19 mi (5,938.79 km) |
| Willebroek to Rochester Hills (Michigan) | 3,926.49 mi (6,319.08 km) |
| Willebroek to Rock Hill (South Carolina) | 4,205.14 mi (6,767.53 km) |
| Willebroek to Rock Island (Illinois) | 4,261.18 mi (6,857.70 km) |
| Willebroek to Rock Springs (Wyoming) | 4,894.00 mi (7,876.14 km) |
| Willebroek to Rockford (Illinois) | 4,167.12 mi (6,706.33 km) |
| Willebroek to Rockledge (Florida) | 4,518.83 mi (7,272.35 km) |
| Willebroek to Rocklin (California) | 5,411.86 mi (8,709.55 km) |
| Willebroek to Rockport (Texas) | 5,195.48 mi (8,361.32 km) |
