| Boulder City to Rheinbach | 5,497.28 mi (8,847.02 km) |
| Boulder City to Rheinberg | 5,441.71 mi (8,757.58 km) |
| Boulder City to Rheine | 5,430.34 mi (8,739.28 km) |
| Boulder City to Rheinfelden (Baden) | 5,676.51 mi (9,135.46 km) |
| Boulder City to Ribnitz-Damgarten | 5,471.36 mi (8,805.30 km) |
| Boulder City to Richterich | 5,461.35 mi (8,789.20 km) |
| Boulder City to Riedlingen | 5,699.59 mi (9,172.61 km) |
| Boulder City to Riegelsberg | 5,563.06 mi (8,952.88 km) |
| Boulder City to Rielasingen-Worblingen | 5,701.15 mi (9,175.11 km) |
| Boulder City to Riesa | 5,648.36 mi (9,090.15 km) |
| Boulder City to Rietberg | 5,483.87 mi (8,825.43 km) |
| Boulder City to Rinteln | 5,483.16 mi (8,824.30 km) |
| Boulder City to Ritterhude | 5,423.83 mi (8,728.81 km) |
| Boulder City to Rodenbach | 5,584.81 mi (8,987.88 km) |
| Boulder City to Rodental | 5,638.41 mi (9,074.14 km) |
