| North Potomac to Rende | 4,744.01 mi (7,634.75 km) |
| North Potomac to Resana | 4,332.77 mi (6,972.92 km) |
| North Potomac to Rescaldina | 4,205.76 mi (6,768.51 km) |
| North Potomac to Rezzato | 4,267.48 mi (6,867.85 km) |
| North Potomac to Rho | 4,212.00 mi (6,778.56 km) |
| North Potomac to Ribera | 4,681.75 mi (7,534.54 km) |
| North Potomac to Riccione Marina | 4,418.50 mi (7,110.88 km) |
| North Potomac to Riesi | 4,727.50 mi (7,608.18 km) |
| North Potomac to Rieti | 4,483.63 mi (7,215.70 km) |
| North Potomac to Rignano Flaminio | 4,474.53 mi (7,201.06 km) |
| North Potomac to Rignano sull'Arno | 4,376.30 mi (7,042.97 km) |
| North Potomac to Rimini | 4,412.92 mi (7,101.91 km) |
| North Potomac to Rionero in Vulture | 4,661.09 mi (7,501.29 km) |
| North Potomac to Riposto | 4,761.25 mi (7,662.50 km) |
| North Potomac to Riva del Garda | 4,277.98 mi (6,884.75 km) |
