| Cities | Distance |
|---|---|
| Rio Maior to Orthez | 510.80 mi (822.06 km) |
| Rio Maior to Orvault | 659.62 mi (1,061.55 km) |
| Rio Maior to Osny | 863.19 mi (1,389.16 km) |
| Rio Maior to Ostwald | 1,040.95 mi (1,675.25 km) |
| Rio Maior to Ouistreham | 808.86 mi (1,301.74 km) |
| Rio Maior to Oullins | 825.35 mi (1,328.27 km) |
| Rio Maior to Outreau | 936.87 mi (1,507.74 km) |
| Rio Maior to Oyonnax | 878.71 mi (1,414.15 km) |
| Rio Maior to Ozoir-la-Ferriere | 868.88 mi (1,398.33 km) |
| Rio Maior to Pace | 705.41 mi (1,135.25 km) |
| Rio Maior to Palaiseau | 851.76 mi (1,370.78 km) |
| Rio Maior to Pamiers | 606.50 mi (976.06 km) |
| Rio Maior to Panazol | 687.18 mi (1,105.90 km) |
| Rio Maior to Pantin | 865.71 mi (1,393.22 km) |
| Rio Maior to Paray-le-Monial | 821.91 mi (1,322.73 km) |