| Grojec to Orzesze | 150.07 mi (241.52 km) |
| Grojec to Osowa | 202.92 mi (326.58 km) |
| Grojec to Ostroda | 132.21 mi (212.78 km) |
| Grojec to Ostroleka | 88.05 mi (141.70 km) |
| Grojec to Ostrow Mazowiecka | 77.90 mi (125.37 km) |
| Grojec to Ostrow Wielkopolski | 131.33 mi (211.36 km) |
| Grojec to Ostrowiec Swietokrzyski | 68.38 mi (110.05 km) |
| Grojec to Ostrzeszow | 129.57 mi (208.52 km) |
| Grojec to Oswiecim | 145.17 mi (233.63 km) |
| Grojec to Otwock | 24.28 mi (39.07 km) |
| Grojec to Ozarow Mazowiecki | 24.43 mi (39.31 km) |
| Grojec to Ozimek | 141.25 mi (227.32 km) |
| Grojec to Ozorkow | 67.87 mi (109.23 km) |
| Grojec to Pabianice | 65.20 mi (104.93 km) |
| Grojec to Parczew | 87.01 mi (140.03 km) |
