| Welzheim to Oerlinghausen | 217.84 mi (350.57 km) |
| Welzheim to Oestrich-Winkel | 106.94 mi (172.11 km) |
| Welzheim to Offenburg | 82.58 mi (132.89 km) |
| Welzheim to Oftersheim | 58.54 mi (94.21 km) |
| Welzheim to Ohrdruf | 143.56 mi (231.04 km) |
| Welzheim to Ohringen | 23.29 mi (37.48 km) |
| Welzheim to Olbernhau | 206.29 mi (332.00 km) |
| Welzheim to Olching | 89.98 mi (144.80 km) |
| Welzheim to Oldenburg | 301.35 mi (484.98 km) |
| Welzheim to Oldenburg in Holstein | 378.65 mi (609.38 km) |
| Welzheim to Olfen | 220.04 mi (354.13 km) |
| Welzheim to Olpe | 168.26 mi (270.79 km) |
| Welzheim to Olsberg | 178.46 mi (287.21 km) |
| Welzheim to Oranienburg | 310.70 mi (500.02 km) |
| Welzheim to Ortenberg | 105.57 mi (169.89 km) |
