| Gaithersburg to Pully | 4,077.37 mi (6,561.90 km) |
| Gaithersburg to Rapperswil-Jona | 4,147.00 mi (6,673.96 km) |
| Gaithersburg to Regensdorf | 4,125.65 mi (6,639.59 km) |
| Gaithersburg to Reinach | 4,087.08 mi (6,577.52 km) |
| Gaithersburg to Renens | 4,073.31 mi (6,555.35 km) |
| Gaithersburg to Rheinfelden | 4,094.16 mi (6,588.92 km) |
| Gaithersburg to Richterswil | 4,142.11 mi (6,666.08 km) |
| Gaithersburg to Riehen | 4,086.17 mi (6,576.05 km) |
| Gaithersburg to Risch | 4,133.17 mi (6,651.69 km) |
| Gaithersburg to Romanshorn | 4,158.75 mi (6,692.86 km) |
| Gaithersburg to Rorschach | 4,167.75 mi (6,707.35 km) |
| Gaithersburg to Rothrist | 4,105.16 mi (6,606.62 km) |
| Gaithersburg to Ruti | 4,146.85 mi (6,673.71 km) |
| Gaithersburg to Sankt Gallen | 4,163.70 mi (6,700.83 km) |
| Gaithersburg to Sarnen | 4,132.90 mi (6,651.26 km) |
