| Santa Maria a Vico to Oerlinghausen | 803.84 mi (1,293.65 km) |
| Santa Maria a Vico to Oestrich-Winkel | 693.88 mi (1,116.69 km) |
| Santa Maria a Vico to Offenburg | 605.35 mi (974.22 km) |
| Santa Maria a Vico to Oftersheim | 643.18 mi (1,035.09 km) |
| Santa Maria a Vico to Ohrdruf | 700.10 mi (1,126.71 km) |
| Santa Maria a Vico to Ohringen | 614.01 mi (988.15 km) |
| Santa Maria a Vico to Olbernhau | 667.88 mi (1,074.85 km) |
| Santa Maria a Vico to Olching | 518.96 mi (835.19 km) |
| Santa Maria a Vico to Oldenburg | 886.37 mi (1,426.48 km) |
| Santa Maria a Vico to Oldenburg in Holstein | 931.51 mi (1,499.11 km) |
| Santa Maria a Vico to Olfen | 811.12 mi (1,305.37 km) |
| Santa Maria a Vico to Olpe | 759.23 mi (1,221.87 km) |
| Santa Maria a Vico to Olsberg | 767.77 mi (1,235.61 km) |
| Santa Maria a Vico to Oranienburg | 811.95 mi (1,306.71 km) |
| Santa Maria a Vico to Ortenberg | 694.88 mi (1,118.30 km) |
