| Grimsby to Opole | 787.72 mi (1,267.71 km) |
| Grimsby to Orzesze | 834.67 mi (1,343.27 km) |
| Grimsby to Osowa | 753.57 mi (1,212.76 km) |
| Grimsby to Ostroda | 818.61 mi (1,317.42 km) |
| Grimsby to Ostroleka | 890.70 mi (1,433.44 km) |
| Grimsby to Ostrow Mazowiecka | 907.98 mi (1,461.25 km) |
| Grimsby to Ostrow Wielkopolski | 760.38 mi (1,223.71 km) |
| Grimsby to Ostrowiec Swietokrzyski | 922.90 mi (1,485.27 km) |
| Grimsby to Ostrzeszow | 770.03 mi (1,239.25 km) |
| Grimsby to Oswiecim | 856.91 mi (1,379.06 km) |
| Grimsby to Otwock | 893.08 mi (1,437.27 km) |
| Grimsby to Ozarow Mazowiecki | 872.19 mi (1,403.66 km) |
| Grimsby to Ozimek | 798.94 mi (1,285.77 km) |
| Grimsby to Ozorkow | 814.42 mi (1,310.69 km) |
| Grimsby to Pabianice | 824.62 mi (1,327.09 km) |
