| Merchweiler to Oestrich-Winkel | 60.99 mi (98.15 km) |
| Merchweiler to Offenburg | 73.38 mi (118.09 km) |
| Merchweiler to Oftersheim | 68.61 mi (110.41 km) |
| Merchweiler to Ohrdruf | 191.77 mi (308.62 km) |
| Merchweiler to Ohringen | 110.53 mi (177.88 km) |
| Merchweiler to Olbernhau | 292.69 mi (471.03 km) |
| Merchweiler to Olching | 209.69 mi (337.47 km) |
| Merchweiler to Oldenburg | 266.13 mi (428.30 km) |
| Merchweiler to Oldenburg in Holstein | 378.20 mi (608.65 km) |
| Merchweiler to Olfen | 163.43 mi (263.01 km) |
| Merchweiler to Olpe | 119.45 mi (192.23 km) |
| Merchweiler to Olsberg | 151.11 mi (243.19 km) |
| Merchweiler to Oranienburg | 356.08 mi (573.06 km) |
| Merchweiler to Ortenberg | 112.38 mi (180.85 km) |
| Merchweiler to Oschatz | 298.38 mi (480.20 km) |
