| Petal to Oerlinghausen | 4,855.91 mi (7,814.83 km) |
| Petal to Oestrich-Winkel | 4,889.67 mi (7,869.17 km) |
| Petal to Offenburg | 4,934.10 mi (7,940.66 km) |
| Petal to Oftersheim | 4,932.46 mi (7,938.03 km) |
| Petal to Ohrdruf | 4,970.93 mi (7,999.93 km) |
| Petal to Ohringen | 4,974.55 mi (8,005.77 km) |
| Petal to Olbernhau | 5,076.01 mi (8,169.04 km) |
| Petal to Olching | 5,080.19 mi (8,175.78 km) |
| Petal to Oldenburg | 4,803.53 mi (7,730.53 km) |
| Petal to Oldenburg in Holstein | 4,866.44 mi (7,831.78 km) |
| Petal to Olfen | 4,813.98 mi (7,747.35 km) |
| Petal to Olpe | 4,852.32 mi (7,809.05 km) |
| Petal to Olsberg | 4,867.57 mi (7,833.59 km) |
| Petal to Oranienburg | 5,001.84 mi (8,049.68 km) |
| Petal to Ortenberg | 4,920.50 mi (7,918.77 km) |
