| North Potomac to Rochefort | 3,763.18 mi (6,056.25 km) |
| North Potomac to Rodez | 3,964.93 mi (6,380.94 km) |
| North Potomac to Rognac | 4,109.93 mi (6,614.29 km) |
| North Potomac to Roissy-en-Brie | 3,845.38 mi (6,188.54 km) |
| North Potomac to Romainville | 3,833.81 mi (6,169.92 km) |
| North Potomac to Romans-sur-Isere | 4,054.26 mi (6,524.70 km) |
| North Potomac to Rombas | 3,976.37 mi (6,399.35 km) |
| North Potomac to Romilly-sur-Seine | 3,897.97 mi (6,273.17 km) |
| North Potomac to Ronchin | 3,816.86 mi (6,142.65 km) |
| North Potomac to Roncq | 3,814.45 mi (6,138.76 km) |
| North Potomac to Roquebrune-sur-Argens | 4,174.08 mi (6,717.54 km) |
| North Potomac to Roquevaire | 4,130.93 mi (6,648.09 km) |
| North Potomac to Rosny-sous-Bois | 3,836.29 mi (6,173.92 km) |
| North Potomac to Roubaix | 3,818.54 mi (6,145.35 km) |
| North Potomac to Rouen | 3,763.06 mi (6,056.06 km) |
