| Gaithersburg to Ondokuzmayis | 5,467.96 mi (8,799.84 km) |
| Gaithersburg to Ordu | 5,559.90 mi (8,947.80 km) |
| Gaithersburg to Ortahisar | 5,557.57 mi (8,944.04 km) |
| Gaithersburg to Ortakent | 5,316.78 mi (8,556.52 km) |
| Gaithersburg to Ortaklar | 5,291.23 mi (8,515.42 km) |
| Gaithersburg to Ortakoy | 5,519.49 mi (8,882.75 km) |
| Gaithersburg to Ortakoy | 5,494.58 mi (8,842.68 km) |
| Gaithersburg to Osmaneli | 5,285.25 mi (8,505.79 km) |
| Gaithersburg to Osmaniye | 5,685.98 mi (9,150.70 km) |
| Gaithersburg to Ozdere | 5,269.70 mi (8,480.77 km) |
| Gaithersburg to Palu | 5,748.99 mi (9,252.10 km) |
| Gaithersburg to Pamukkale | 5,357.34 mi (8,621.81 km) |
| Gaithersburg to Patnos | 5,829.54 mi (9,381.73 km) |
| Gaithersburg to Pazar | 5,535.58 mi (8,908.66 km) |
| Gaithersburg to Pazarcik | 5,707.27 mi (9,184.96 km) |
