| Chaumont-Gistoux to Oestrich-Winkel | 153.20 mi (246.55 km) |
| Chaumont-Gistoux to Offenburg | 210.96 mi (339.51 km) |
| Chaumont-Gistoux to Oftersheim | 195.02 mi (313.86 km) |
| Chaumont-Gistoux to Ohrdruf | 264.04 mi (424.93 km) |
| Chaumont-Gistoux to Ohringen | 236.94 mi (381.31 km) |
| Chaumont-Gistoux to Olbernhau | 378.03 mi (608.38 km) |
| Chaumont-Gistoux to Olching | 343.27 mi (552.43 km) |
| Chaumont-Gistoux to Oldenburg | 226.63 mi (364.73 km) |
| Chaumont-Gistoux to Oldenburg in Holstein | 360.59 mi (580.32 km) |
| Chaumont-Gistoux to Olfen | 136.52 mi (219.71 km) |
| Chaumont-Gistoux to Olpe | 138.82 mi (223.41 km) |
| Chaumont-Gistoux to Olsberg | 170.96 mi (275.14 km) |
| Chaumont-Gistoux to Oranienburg | 392.33 mi (631.40 km) |
| Chaumont-Gistoux to Ortenberg | 192.87 mi (310.39 km) |
| Chaumont-Gistoux to Oschatz | 368.12 mi (592.43 km) |
