| Riihimaki to Orvault | 1,401.78 mi (2,255.95 km) |
| Riihimaki to Osny | 1,198.91 mi (1,929.46 km) |
| Riihimaki to Ostwald | 1,076.52 mi (1,732.49 km) |
| Riihimaki to Ouistreham | 1,255.32 mi (2,020.24 km) |
| Riihimaki to Oullins | 1,314.92 mi (2,116.15 km) |
| Riihimaki to Outreau | 1,127.15 mi (1,813.98 km) |
| Riihimaki to Oyonnax | 1,261.99 mi (2,030.98 km) |
| Riihimaki to Ozoir-la-Ferriere | 1,196.55 mi (1,925.65 km) |
| Riihimaki to Pace | 1,359.64 mi (2,188.13 km) |
| Riihimaki to Palaiseau | 1,212.25 mi (1,950.92 km) |
| Riihimaki to Pamiers | 1,549.70 mi (2,494.01 km) |
| Riihimaki to Panazol | 1,398.41 mi (2,250.52 km) |
| Riihimaki to Pantin | 1,197.98 mi (1,927.96 km) |
| Riihimaki to Paray-le-Monial | 1,288.98 mi (2,074.42 km) |
| Riihimaki to Parempuyre | 1,501.58 mi (2,416.57 km) |
