| Hercules to Oerlinghausen | 5,554.20 mi (8,938.61 km) |
| Hercules to Oestrich-Winkel | 5,644.75 mi (9,084.34 km) |
| Hercules to Offenburg | 5,727.10 mi (9,216.88 km) |
| Hercules to Oftersheim | 5,695.19 mi (9,165.52 km) |
| Hercules to Ohrdruf | 5,670.35 mi (9,125.54 km) |
| Hercules to Ohringen | 5,729.27 mi (9,220.37 km) |
| Hercules to Olbernhau | 5,744.17 mi (9,244.36 km) |
| Hercules to Olching | 5,833.70 mi (9,388.43 km) |
| Hercules to Oldenburg | 5,478.01 mi (8,816.00 km) |
| Hercules to Oldenburg in Holstein | 5,479.20 mi (8,817.93 km) |
| Hercules to Olfen | 5,534.47 mi (8,906.87 km) |
| Hercules to Olpe | 5,584.58 mi (8,987.51 km) |
| Hercules to Olsberg | 5,583.40 mi (8,985.61 km) |
| Hercules to Oranienburg | 5,622.08 mi (9,047.86 km) |
| Hercules to Ortenberg | 5,653.28 mi (9,098.08 km) |
