| Cities | Distance |
|---|---|
| Riom to Orthez | 252.94 mi (407.07 km) |
| Riom to Orvault | 244.13 mi (392.90 km) |
| Riom to Osny | 224.14 mi (360.73 km) |
| Riom to Ostwald | 283.34 mi (455.99 km) |
| Riom to Ouistreham | 281.71 mi (453.36 km) |
| Riom to Oullins | 82.60 mi (132.94 km) |
| Riom to Outreau | 339.59 mi (546.52 km) |
| Riom to Oyonnax | 124.43 mi (200.26 km) |
| Riom to Ozoir-la-Ferriere | 200.32 mi (322.38 km) |
| Riom to Pace | 277.82 mi (447.12 km) |
| Riom to Palaiseau | 199.09 mi (320.40 km) |
| Riom to Pamiers | 205.65 mi (330.96 km) |
| Riom to Panazol | 86.80 mi (139.70 km) |
| Riom to Pantin | 210.13 mi (338.17 km) |
| Riom to Paray-le-Monial | 61.68 mi (99.27 km) |