| Gahanna to Oststeinbek | 4,176.52 mi (6,721.45 km) |
| Gahanna to Ottendorf-Okrilla | 4,392.10 mi (7,068.40 km) |
| Gahanna to Ottersberg | 4,154.10 mi (6,685.37 km) |
| Gahanna to Ottobrunn | 4,423.55 mi (7,119.01 km) |
| Gahanna to Ottweiler | 4,201.16 mi (6,761.11 km) |
| Gahanna to Overath | 4,154.42 mi (6,685.89 km) |
| Gahanna to Oyten | 4,150.51 mi (6,679.61 km) |
| Gahanna to Paderborn | 4,184.62 mi (6,734.50 km) |
| Gahanna to Papenburg | 4,090.74 mi (6,583.40 km) |
| Gahanna to Parchim | 4,240.71 mi (6,824.77 km) |
| Gahanna to Pasewalk | 4,314.78 mi (6,943.97 km) |
| Gahanna to Passau | 4,474.64 mi (7,201.23 km) |
| Gahanna to Pattensen | 4,204.23 mi (6,766.06 km) |
| Gahanna to Pegnitz | 4,357.85 mi (7,013.29 km) |
| Gahanna to Peine | 4,219.70 mi (6,790.95 km) |
