| Cities | Distance |
|---|---|
| Riom to Oestrich-Winkel | 362.69 mi (583.69 km) |
| Riom to Offenburg | 287.76 mi (463.11 km) |
| Riom to Oftersheim | 350.02 mi (563.30 km) |
| Riom to Ohrdruf | 488.02 mi (785.39 km) |
| Riom to Ohringen | 375.19 mi (603.81 km) |
| Riom to Olbernhau | 573.31 mi (922.66 km) |
| Riom to Olching | 417.57 mi (672.01 km) |
| Riom to Oldenburg | 550.39 mi (885.77 km) |
| Riom to Oldenburg in Holstein | 674.35 mi (1,085.27 km) |
| Riom to Olfen | 446.63 mi (718.78 km) |
| Riom to Olpe | 414.64 mi (667.30 km) |
| Riom to Olsberg | 449.50 mi (723.41 km) |
| Riom to Oranienburg | 656.52 mi (1,056.57 km) |
| Riom to Ortenberg | 412.26 mi (663.47 km) |
| Riom to Oschatz | 589.14 mi (948.13 km) |