| South Milwaukee to Ratingen | 4,174.10 mi (6,717.57 km) |
| South Milwaukee to Ratzeburg | 4,219.24 mi (6,790.22 km) |
| South Milwaukee to Raubling | 4,506.30 mi (7,252.19 km) |
| South Milwaukee to Rauenberg | 4,320.36 mi (6,952.95 km) |
| South Milwaukee to Raunheim | 4,281.59 mi (6,890.55 km) |
| South Milwaukee to Ravensburg | 4,413.71 mi (7,103.19 km) |
| South Milwaukee to Recke | 4,165.05 mi (6,703.00 km) |
| South Milwaukee to Recklinghausen | 4,174.66 mi (6,718.47 km) |
| South Milwaukee to Regen | 4,494.24 mi (7,232.78 km) |
| South Milwaukee to Regensburg | 4,454.25 mi (7,168.42 km) |
| South Milwaukee to Regenstauf | 4,451.44 mi (7,163.90 km) |
| South Milwaukee to Rehau | 4,400.98 mi (7,082.69 km) |
| South Milwaukee to Rehburg-Loccum | 4,214.39 mi (6,782.41 km) |
| South Milwaukee to Rehlingen-Siersburg | 4,241.11 mi (6,825.40 km) |
| South Milwaukee to Reichelsheim | 4,307.71 mi (6,932.60 km) |
