| Willenhall to Oerlinghausen | 455.07 mi (732.37 km) |
| Willenhall to Oestrich-Winkel | 469.33 mi (755.31 km) |
| Willenhall to Offenburg | 522.25 mi (840.48 km) |
| Willenhall to Oftersheim | 512.80 mi (825.27 km) |
| Willenhall to Ohrdruf | 560.20 mi (901.55 km) |
| Willenhall to Ohringen | 554.51 mi (892.40 km) |
| Willenhall to Olbernhau | 672.05 mi (1,081.55 km) |
| Willenhall to Olching | 661.05 mi (1,063.85 km) |
| Willenhall to Oldenburg | 429.98 mi (691.99 km) |
| Willenhall to Oldenburg in Holstein | 544.98 mi (877.06 km) |
| Willenhall to Olfen | 404.50 mi (650.99 km) |
| Willenhall to Olpe | 435.95 mi (701.59 km) |
| Willenhall to Olsberg | 456.40 mi (734.50 km) |
| Willenhall to Oranienburg | 639.89 mi (1,029.80 km) |
| Willenhall to Ortenberg | 501.92 mi (807.75 km) |
