| Castanet-Tolosan to Orzesze | 932.29 mi (1,500.38 km) |
| Castanet-Tolosan to Osowa | 1,072.20 mi (1,725.55 km) |
| Castanet-Tolosan to Ostroda | 1,092.91 mi (1,758.87 km) |
| Castanet-Tolosan to Ostroleka | 1,127.99 mi (1,815.32 km) |
| Castanet-Tolosan to Ostrow Mazowiecka | 1,131.98 mi (1,821.74 km) |
| Castanet-Tolosan to Ostrow Wielkopolski | 942.14 mi (1,516.23 km) |
| Castanet-Tolosan to Ostrowiec Swietokrzyski | 1,060.44 mi (1,706.62 km) |
| Castanet-Tolosan to Ostrzeszow | 938.55 mi (1,510.45 km) |
| Castanet-Tolosan to Oswiecim | 948.72 mi (1,526.82 km) |
| Castanet-Tolosan to Otwock | 1,087.42 mi (1,750.03 km) |
| Castanet-Tolosan to Ozarow Mazowiecki | 1,072.63 mi (1,726.23 km) |
| Castanet-Tolosan to Ozimek | 925.63 mi (1,489.66 km) |
| Castanet-Tolosan to Ozorkow | 1,007.52 mi (1,621.45 km) |
| Castanet-Tolosan to Pabianice | 1,001.11 mi (1,611.14 km) |
| Castanet-Tolosan to Parczew | 1,137.01 mi (1,829.84 km) |
