| North Potomac to Rosolini | 4,785.15 mi (7,700.96 km) |
| North Potomac to Rossano | 4,754.99 mi (7,652.42 km) |
| North Potomac to Rottofreno | 4,249.52 mi (6,838.93 km) |
| North Potomac to Rovato | 4,252.19 mi (6,843.23 km) |
| North Potomac to Roverbella | 4,294.82 mi (6,911.85 km) |
| North Potomac to Rovereto | 4,286.44 mi (6,898.35 km) |
| North Potomac to Rovigo | 4,344.81 mi (6,992.29 km) |
| North Potomac to Rozzano | 4,221.83 mi (6,794.37 km) |
| North Potomac to Rubano | 4,332.46 mi (6,972.42 km) |
| North Potomac to Rubiera | 4,316.09 mi (6,946.08 km) |
| North Potomac to Ruffano | 4,809.85 mi (7,740.71 km) |
| North Potomac to Russi | 4,379.04 mi (7,047.38 km) |
| North Potomac to Rutigliano | 4,714.31 mi (7,586.94 km) |
| North Potomac to Ruvo di Puglia | 4,689.20 mi (7,546.53 km) |
| North Potomac to Sabaudia | 4,530.64 mi (7,291.35 km) |
