| Chalons-en-Champagne to Obernburg am Main | 223.22 mi (359.23 km) |
| Chalons-en-Champagne to Obernkirchen | 309.21 mi (497.63 km) |
| Chalons-en-Champagne to Oberschleissheim | 332.52 mi (535.14 km) |
| Chalons-en-Champagne to Oberstdorf | 292.59 mi (470.88 km) |
| Chalons-en-Champagne to Obertraubling | 353.77 mi (569.34 km) |
| Chalons-en-Champagne to Obertshausen | 214.56 mi (345.31 km) |
| Chalons-en-Champagne to Oberursel | 207.35 mi (333.70 km) |
| Chalons-en-Champagne to Ochsenfurt | 261.22 mi (420.40 km) |
| Chalons-en-Champagne to Ochsenhausen | 262.69 mi (422.75 km) |
| Chalons-en-Champagne to Ochtrup | 256.33 mi (412.52 km) |
| Chalons-en-Champagne to Odenthal | 188.41 mi (303.22 km) |
| Chalons-en-Champagne to Oelde | 259.30 mi (417.31 km) |
| Chalons-en-Champagne to Oelsnitz | 362.83 mi (583.91 km) |
| Chalons-en-Champagne to Oer-Erkenschwick | 224.97 mi (362.06 km) |
| Chalons-en-Champagne to Oerlinghausen | 281.02 mi (452.26 km) |
