| Arklow to Montemor-o-Novo | 982.16 mi (1,580.63 km) |
| Arklow to Montemor-o-Velho | 880.51 mi (1,417.05 km) |
| Arklow to Montijo | 983.66 mi (1,583.04 km) |
| Arklow to Mortagua | 859.58 mi (1,383.35 km) |
| Arklow to Moura | 1,014.83 mi (1,633.22 km) |
| Arklow to Murtosa | 841.34 mi (1,354.00 km) |
| Arklow to Nazare | 921.93 mi (1,483.70 km) |
| Arklow to Nelas | 851.98 mi (1,371.13 km) |
| Arklow to Obidos | 939.14 mi (1,511.40 km) |
| Arklow to Odemira | 1,057.65 mi (1,702.13 km) |
| Arklow to Odivelas | 978.18 mi (1,574.23 km) |
| Arklow to Oeiras | 986.49 mi (1,587.60 km) |
| Arklow to Olhao | 1,092.48 mi (1,758.17 km) |
| Arklow to Oliveira de Azemeis | 833.02 mi (1,340.62 km) |
| Arklow to Oliveira de Frades | 839.83 mi (1,351.58 km) |
