| Granollers to Opole | 972.60 mi (1,565.24 km) |
| Granollers to Orzesze | 983.95 mi (1,583.51 km) |
| Granollers to Osowa | 1,153.57 mi (1,856.49 km) |
| Granollers to Ostroda | 1,166.34 mi (1,877.05 km) |
| Granollers to Ostroleka | 1,193.76 mi (1,921.17 km) |
| Granollers to Ostrow Mazowiecka | 1,195.32 mi (1,923.68 km) |
| Granollers to Ostrow Wielkopolski | 1,008.11 mi (1,622.40 km) |
| Granollers to Ostrowiec Swietokrzyski | 1,111.90 mi (1,789.44 km) |
| Granollers to Ostrzeszow | 1,002.48 mi (1,613.33 km) |
| Granollers to Oswiecim | 998.21 mi (1,606.47 km) |
| Granollers to Otwock | 1,147.65 mi (1,846.96 km) |
| Granollers to Ozarow Mazowiecki | 1,134.63 mi (1,826.00 km) |
| Granollers to Ozimek | 983.03 mi (1,582.04 km) |
| Granollers to Ozorkow | 1,071.60 mi (1,724.58 km) |
| Granollers to Pabianice | 1,062.69 mi (1,710.23 km) |
