| Greer to Opole | 4,797.78 mi (7,721.28 km) |
| Greer to Orzesze | 4,846.96 mi (7,800.42 km) |
| Greer to Osowa | 4,687.31 mi (7,543.50 km) |
| Greer to Ostroda | 4,765.01 mi (7,668.54 km) |
| Greer to Ostroleka | 4,844.09 mi (7,795.81 km) |
| Greer to Ostrow Mazowiecka | 4,865.67 mi (7,830.54 km) |
| Greer to Ostrow Wielkopolski | 4,759.17 mi (7,659.15 km) |
| Greer to Ostrowiec Swietokrzyski | 4,917.11 mi (7,913.33 km) |
| Greer to Ostrzeszow | 4,771.60 mi (7,679.14 km) |
| Greer to Oswiecim | 4,868.82 mi (7,835.61 km) |
| Greer to Otwock | 4,868.40 mi (7,834.94 km) |
| Greer to Ozarow Mazowiecki | 4,847.98 mi (7,802.06 km) |
| Greer to Ozimek | 4,808.11 mi (7,737.90 km) |
| Greer to Ozorkow | 4,802.03 mi (7,728.13 km) |
| Greer to Pabianice | 4,816.97 mi (7,752.17 km) |
