| Amersfoort to Oerlinghausen | 140.05 mi (225.39 km) |
| Amersfoort to Oestrich-Winkel | 186.98 mi (300.91 km) |
| Amersfoort to Offenburg | 278.21 mi (447.74 km) |
| Amersfoort to Oftersheim | 237.55 mi (382.31 km) |
| Amersfoort to Ohrdruf | 247.53 mi (398.36 km) |
| Amersfoort to Ohringen | 272.01 mi (437.75 km) |
| Amersfoort to Olbernhau | 357.42 mi (575.20 km) |
| Amersfoort to Olching | 378.47 mi (609.09 km) |
| Amersfoort to Oldenburg | 137.08 mi (220.62 km) |
| Amersfoort to Oldenburg in Holstein | 271.59 mi (437.08 km) |
| Amersfoort to Olfen | 90.31 mi (145.33 km) |
| Amersfoort to Olpe | 131.12 mi (211.02 km) |
| Amersfoort to Olsberg | 143.65 mi (231.18 km) |
| Amersfoort to Oranienburg | 333.15 mi (536.15 km) |
| Amersfoort to Ortenberg | 201.41 mi (324.14 km) |
