| Chelm to Montemor-o-Novo | 1,755.54 mi (2,825.27 km) |
| Chelm to Montemor-o-Velho | 1,709.91 mi (2,751.83 km) |
| Chelm to Montijo | 1,782.47 mi (2,868.61 km) |
| Chelm to Mortagua | 1,679.88 mi (2,703.51 km) |
| Chelm to Moura | 1,747.04 mi (2,811.59 km) |
| Chelm to Murtosa | 1,684.47 mi (2,710.89 km) |
| Chelm to Nazare | 1,749.86 mi (2,816.13 km) |
| Chelm to Nelas | 1,660.30 mi (2,671.99 km) |
| Chelm to Obidos | 1,764.00 mi (2,838.88 km) |
| Chelm to Odemira | 1,820.66 mi (2,930.07 km) |
| Chelm to Odivelas | 1,789.45 mi (2,879.84 km) |
| Chelm to Oeiras | 1,799.85 mi (2,896.57 km) |
| Chelm to Olhao | 1,813.95 mi (2,919.26 km) |
| Chelm to Oliveira de Azemeis | 1,673.43 mi (2,693.13 km) |
| Chelm to Oliveira de Frades | 1,666.12 mi (2,681.37 km) |
