| Stowmarket to Oerlinghausen | 325.77 mi (524.27 km) |
| Stowmarket to Oestrich-Winkel | 339.16 mi (545.82 km) |
| Stowmarket to Offenburg | 399.32 mi (642.65 km) |
| Stowmarket to Oftersheim | 384.09 mi (618.14 km) |
| Stowmarket to Ohrdruf | 428.63 mi (689.82 km) |
| Stowmarket to Ohringen | 425.15 mi (684.22 km) |
| Stowmarket to Olbernhau | 540.93 mi (870.54 km) |
| Stowmarket to Olching | 532.41 mi (856.82 km) |
| Stowmarket to Oldenburg | 309.23 mi (497.66 km) |
| Stowmarket to Oldenburg in Holstein | 433.41 mi (697.50 km) |
| Stowmarket to Olfen | 273.69 mi (440.45 km) |
| Stowmarket to Olpe | 304.11 mi (489.42 km) |
| Stowmarket to Olsberg | 325.02 mi (523.08 km) |
| Stowmarket to Oranienburg | 515.87 mi (830.22 km) |
| Stowmarket to Ortenberg | 370.30 mi (595.94 km) |
