| Merzig to Orzesze | 542.66 mi (873.32 km) |
| Merzig to Osowa | 609.69 mi (981.20 km) |
| Merzig to Ostroda | 642.71 mi (1,034.34 km) |
| Merzig to Ostroleka | 691.44 mi (1,112.76 km) |
| Merzig to Ostrow Mazowiecka | 700.38 mi (1,127.16 km) |
| Merzig to Ostrow Wielkopolski | 514.04 mi (827.27 km) |
| Merzig to Ostrowiec Swietokrzyski | 660.77 mi (1,063.40 km) |
| Merzig to Ostrzeszow | 515.66 mi (829.88 km) |
| Merzig to Oswiecim | 563.57 mi (906.98 km) |
| Merzig to Otwock | 664.66 mi (1,069.67 km) |
| Merzig to Ozarow Mazowiecki | 646.55 mi (1,040.52 km) |
| Merzig to Ozimek | 520.70 mi (837.98 km) |
| Merzig to Ozorkow | 579.98 mi (933.39 km) |
| Merzig to Pabianice | 579.88 mi (933.23 km) |
| Merzig to Parczew | 727.68 mi (1,171.09 km) |
