| Asslar to Oestrich-Winkel | 45.26 mi (72.84 km) |
| Asslar to Offenburg | 148.19 mi (238.48 km) |
| Asslar to Oftersheim | 83.95 mi (135.11 km) |
| Asslar to Ohrdruf | 100.59 mi (161.88 km) |
| Asslar to Ohringen | 106.07 mi (170.70 km) |
| Asslar to Olbernhau | 213.35 mi (343.36 km) |
| Asslar to Olching | 208.64 mi (335.77 km) |
| Asslar to Oldenburg | 177.25 mi (285.25 km) |
| Asslar to Oldenburg in Holstein | 276.19 mi (444.49 km) |
| Asslar to Olfen | 91.31 mi (146.94 km) |
| Asslar to Olpe | 40.76 mi (65.60 km) |
| Asslar to Olsberg | 52.98 mi (85.26 km) |
| Asslar to Oranienburg | 253.46 mi (407.91 km) |
| Asslar to Ortenberg | 30.28 mi (48.74 km) |
| Asslar to Oschatz | 207.98 mi (334.71 km) |
