| Alacuas to Oerlinghausen | 968.25 mi (1,558.24 km) |
| Alacuas to Oestrich-Winkel | 837.26 mi (1,347.43 km) |
| Alacuas to Offenburg | 748.50 mi (1,204.59 km) |
| Alacuas to Oftersheim | 816.27 mi (1,313.66 km) |
| Alacuas to Ohrdruf | 954.15 mi (1,535.55 km) |
| Alacuas to Ohringen | 832.44 mi (1,339.68 km) |
| Alacuas to Olbernhau | 1,022.81 mi (1,646.06 km) |
| Alacuas to Olching | 840.50 mi (1,352.65 km) |
| Alacuas to Oldenburg | 1,030.53 mi (1,658.48 km) |
| Alacuas to Oldenburg in Holstein | 1,153.73 mi (1,856.74 km) |
| Alacuas to Olfen | 926.77 mi (1,491.50 km) |
| Alacuas to Olpe | 893.48 mi (1,437.92 km) |
| Alacuas to Olsberg | 927.61 mi (1,492.85 km) |
| Alacuas to Oranienburg | 1,124.88 mi (1,810.32 km) |
| Alacuas to Ortenberg | 883.75 mi (1,422.26 km) |
