| Schwelm to Oerlinghausen | 77.11 mi (124.10 km) |
| Schwelm to Oestrich-Winkel | 93.23 mi (150.04 km) |
| Schwelm to Offenburg | 195.72 mi (314.99 km) |
| Schwelm to Oftersheim | 143.33 mi (230.66 km) |
| Schwelm to Ohrdruf | 153.56 mi (247.13 km) |
| Schwelm to Ohringen | 173.57 mi (279.33 km) |
| Schwelm to Olbernhau | 267.13 mi (429.91 km) |
| Schwelm to Olching | 278.50 mi (448.20 km) |
| Schwelm to Oldenburg | 135.76 mi (218.48 km) |
| Schwelm to Oldenburg in Holstein | 258.32 mi (415.72 km) |
| Schwelm to Olfen | 31.49 mi (50.68 km) |
| Schwelm to Olpe | 30.03 mi (48.32 km) |
| Schwelm to Olsberg | 52.86 mi (85.07 km) |
| Schwelm to Oranienburg | 273.81 mi (440.66 km) |
| Schwelm to Ortenberg | 100.29 mi (161.40 km) |
