| Gaithersburg to Rochefort | 3,760.59 mi (6,052.09 km) |
| Gaithersburg to Rodez | 3,962.36 mi (6,376.81 km) |
| Gaithersburg to Rognac | 4,107.36 mi (6,610.16 km) |
| Gaithersburg to Roissy-en-Brie | 3,842.69 mi (6,184.21 km) |
| Gaithersburg to Romainville | 3,831.12 mi (6,165.59 km) |
| Gaithersburg to Romans-sur-Isere | 4,051.65 mi (6,520.50 km) |
| Gaithersburg to Rombas | 3,973.64 mi (6,394.96 km) |
| Gaithersburg to Romilly-sur-Seine | 3,895.28 mi (6,268.84 km) |
| Gaithersburg to Ronchin | 3,814.13 mi (6,138.24 km) |
| Gaithersburg to Roncq | 3,811.70 mi (6,134.34 km) |
| Gaithersburg to Roquebrune-sur-Argens | 4,171.50 mi (6,713.38 km) |
| Gaithersburg to Roquevaire | 4,128.36 mi (6,643.95 km) |
| Gaithersburg to Rosny-sous-Bois | 3,833.60 mi (6,169.59 km) |
| Gaithersburg to Roubaix | 3,815.80 mi (6,140.94 km) |
| Gaithersburg to Rouen | 3,760.36 mi (6,051.72 km) |
