| Merrick to Opole | 4,184.77 mi (6,734.74 km) |
| Merrick to Orzesze | 4,233.72 mi (6,813.52 km) |
| Merrick to Osowa | 4,079.96 mi (6,566.06 km) |
| Merrick to Ostroda | 4,157.25 mi (6,690.45 km) |
| Merrick to Ostroleka | 4,236.22 mi (6,817.53 km) |
| Merrick to Ostrow Mazowiecka | 4,257.56 mi (6,851.88 km) |
| Merrick to Ostrow Wielkopolski | 4,147.26 mi (6,674.37 km) |
| Merrick to Ostrowiec Swietokrzyski | 4,305.98 mi (6,929.81 km) |
| Merrick to Ostrzeszow | 4,159.44 mi (6,693.98 km) |
| Merrick to Oswiecim | 4,255.66 mi (6,848.82 km) |
| Merrick to Otwock | 4,258.85 mi (6,853.96 km) |
| Merrick to Ozarow Mazowiecki | 4,238.31 mi (6,820.90 km) |
| Merrick to Ozimek | 4,195.21 mi (6,751.55 km) |
| Merrick to Ozorkow | 4,191.22 mi (6,745.11 km) |
| Merrick to Pabianice | 4,205.78 mi (6,768.55 km) |
