| Martos to Opole | 1,396.94 mi (2,248.15 km) |
| Martos to Orzesze | 1,410.14 mi (2,269.40 km) |
| Martos to Osowa | 1,564.37 mi (2,517.60 km) |
| Martos to Ostroda | 1,583.35 mi (2,548.16 km) |
| Martos to Ostroleka | 1,615.30 mi (2,599.57 km) |
| Martos to Ostrow Mazowiecka | 1,618.01 mi (2,603.93 km) |
| Martos to Ostrow Wielkopolski | 1,429.24 mi (2,300.14 km) |
| Martos to Ostrowiec Swietokrzyski | 1,538.31 mi (2,475.68 km) |
| Martos to Ostrzeszow | 1,424.58 mi (2,292.63 km) |
| Martos to Oswiecim | 1,424.86 mi (2,293.10 km) |
| Martos to Otwock | 1,571.55 mi (2,529.16 km) |
| Martos to Ozarow Mazowiecki | 1,557.80 mi (2,507.04 km) |
| Martos to Ozimek | 1,407.65 mi (2,265.39 km) |
| Martos to Ozorkow | 1,493.76 mi (2,403.97 km) |
| Martos to Pabianice | 1,485.92 mi (2,391.35 km) |
