| Gouveia to Opole | 1,410.13 mi (2,269.38 km) |
| Gouveia to Orzesze | 1,432.69 mi (2,305.69 km) |
| Gouveia to Osowa | 1,536.77 mi (2,473.20 km) |
| Gouveia to Ostroda | 1,569.09 mi (2,525.21 km) |
| Gouveia to Ostroleka | 1,613.25 mi (2,596.27 km) |
| Gouveia to Ostrow Mazowiecka | 1,619.89 mi (2,606.96 km) |
| Gouveia to Ostrow Wielkopolski | 1,430.04 mi (2,301.43 km) |
| Gouveia to Ostrowiec Swietokrzyski | 1,559.75 mi (2,510.18 km) |
| Gouveia to Ostrzeszow | 1,428.62 mi (2,299.14 km) |
| Gouveia to Oswiecim | 1,450.38 mi (2,334.16 km) |
| Gouveia to Otwock | 1,579.05 mi (2,541.24 km) |
| Gouveia to Ozarow Mazowiecki | 1,562.71 mi (2,514.93 km) |
| Gouveia to Ozimek | 1,421.81 mi (2,288.18 km) |
| Gouveia to Ozorkow | 1,496.36 mi (2,408.16 km) |
| Gouveia to Pabianice | 1,492.56 mi (2,402.04 km) |
