| Mack to Oerlinghausen | 4,284.15 mi (6,894.67 km) |
| Mack to Oestrich-Winkel | 4,324.65 mi (6,959.85 km) |
| Mack to Offenburg | 4,374.29 mi (7,039.74 km) |
| Mack to Oftersheim | 4,368.83 mi (7,030.96 km) |
| Mack to Ohrdruf | 4,400.46 mi (7,081.86 km) |
| Mack to Ohringen | 4,410.42 mi (7,097.88 km) |
| Mack to Olbernhau | 4,503.33 mi (7,247.41 km) |
| Mack to Olching | 4,517.07 mi (7,269.53 km) |
| Mack to Oldenburg | 4,228.82 mi (6,805.62 km) |
| Mack to Oldenburg in Holstein | 4,286.64 mi (6,898.67 km) |
| Mack to Olfen | 4,244.17 mi (6,830.34 km) |
| Mack to Olpe | 4,284.23 mi (6,894.80 km) |
| Mack to Olsberg | 4,297.81 mi (6,916.66 km) |
| Mack to Oranienburg | 4,423.89 mi (7,119.56 km) |
| Mack to Ortenberg | 4,353.20 mi (7,005.80 km) |
