| Duluth to Rheinbach | 4,169.69 mi (6,710.48 km) |
| Duluth to Rheinberg | 4,118.47 mi (6,628.03 km) |
| Duluth to Rheine | 4,114.70 mi (6,621.97 km) |
| Duluth to Rheinfelden (Baden) | 4,334.78 mi (6,976.15 km) |
| Duluth to Ribnitz-Damgarten | 4,189.00 mi (6,741.55 km) |
| Duluth to Richterich | 4,131.81 mi (6,649.50 km) |
| Duluth to Riedlingen | 4,366.73 mi (7,027.58 km) |
| Duluth to Riegelsberg | 4,227.74 mi (6,803.89 km) |
| Duluth to Rielasingen-Worblingen | 4,363.83 mi (7,022.91 km) |
| Duluth to Riesa | 4,349.21 mi (6,999.38 km) |
| Duluth to Rietberg | 4,168.75 mi (6,708.95 km) |
| Duluth to Rinteln | 4,172.98 mi (6,715.76 km) |
| Duluth to Ritterhude | 4,119.09 mi (6,629.04 km) |
| Duluth to Rodenbach | 4,261.70 mi (6,858.54 km) |
| Duluth to Rodental | 4,323.76 mi (6,958.41 km) |
