| Cities | Distance |
|---|---|
| Riom to Novi di Modena | 384.00 mi (617.98 km) |
| Riom to Novi Ligure | 286.44 mi (460.98 km) |
| Riom to Nuoro | 496.61 mi (799.22 km) |
| Riom to Occhiobello | 416.04 mi (669.56 km) |
| Riom to Oderzo | 451.35 mi (726.38 km) |
| Riom to Oggiono | 300.27 mi (483.24 km) |
| Riom to Olbia | 469.86 mi (756.16 km) |
| Riom to Oleggio | 266.91 mi (429.54 km) |
| Riom to Olgiate Comasco | 281.84 mi (453.58 km) |
| Riom to Olgiate Olona | 278.68 mi (448.49 km) |
| Riom to Omegna | 254.59 mi (409.72 km) |
| Riom to Opera | 296.91 mi (477.83 km) |
| Riom to Oppeano | 392.16 mi (631.12 km) |
| Riom to Orbassano | 222.99 mi (358.87 km) |
| Riom to Orbetello | 466.70 mi (751.07 km) |