| Rocky River to Montalegre | 3,695.92 mi (5,948.01 km) |
| Rocky River to Montemor-o-Novo | 3,776.41 mi (6,077.54 km) |
| Rocky River to Montemor-o-Velho | 3,705.76 mi (5,963.84 km) |
| Rocky River to Montijo | 3,742.80 mi (6,023.45 km) |
| Rocky River to Mortagua | 3,718.50 mi (5,984.35 km) |
| Rocky River to Moura | 3,829.93 mi (6,163.68 km) |
| Rocky River to Murtosa | 3,690.41 mi (5,939.14 km) |
| Rocky River to Nazare | 3,705.54 mi (5,963.49 km) |
| Rocky River to Nelas | 3,733.81 mi (6,008.99 km) |
| Rocky River to Obidos | 3,708.90 mi (5,968.89 km) |
| Rocky River to Odemira | 3,791.61 mi (6,102.00 km) |
| Rocky River to Odivelas | 3,726.01 mi (5,996.44 km) |
| Rocky River to Oeiras | 3,722.92 mi (5,991.47 km) |
| Rocky River to Olhao | 3,848.36 mi (6,193.34 km) |
| Rocky River to Oliveira de Azemeis | 3,694.50 mi (5,945.72 km) |
