| Gaithersburg to Rende | 4,741.42 mi (7,630.58 km) |
| Gaithersburg to Resana | 4,330.08 mi (6,968.59 km) |
| Gaithersburg to Rescaldina | 4,203.10 mi (6,764.23 km) |
| Gaithersburg to Rezzato | 4,264.81 mi (6,863.55 km) |
| Gaithersburg to Rho | 4,209.34 mi (6,774.28 km) |
| Gaithersburg to Ribera | 4,679.24 mi (7,530.51 km) |
| Gaithersburg to Riccione Marina | 4,415.84 mi (7,106.61 km) |
| Gaithersburg to Riesi | 4,724.99 mi (7,604.14 km) |
| Gaithersburg to Rieti | 4,481.00 mi (7,211.48 km) |
| Gaithersburg to Rignano Flaminio | 4,471.91 mi (7,196.85 km) |
| Gaithersburg to Rignano sull'Arno | 4,373.66 mi (7,038.73 km) |
| Gaithersburg to Rimini | 4,410.27 mi (7,097.64 km) |
| Gaithersburg to Rionero in Vulture | 4,658.47 mi (7,497.08 km) |
| Gaithersburg to Riposto | 4,758.72 mi (7,658.42 km) |
| Gaithersburg to Riva del Garda | 4,275.30 mi (6,880.43 km) |
