| Castelo Branco to Mendota Heights (Minnesota) | 4,176.51 mi (6,721.45 km) |
| Castelo Branco to Menifee (California) | 5,662.64 mi (9,113.14 km) |
| Castelo Branco to Menlo Park (California) | 5,681.92 mi (9,144.16 km) |
| Castelo Branco to Menomonee Falls (Wisconsin) | 4,010.64 mi (6,454.50 km) |
| Castelo Branco to Menomonie (Wisconsin) | 4,123.02 mi (6,635.36 km) |
| Castelo Branco to Mentor (Ohio) | 3,741.93 mi (6,022.05 km) |
| Castelo Branco to Mequon (Wisconsin) | 4,001.71 mi (6,440.13 km) |
| Castelo Branco to Merced (California) | 5,624.00 mi (9,050.96 km) |
| Castelo Branco to Mercedes (Texas) | 5,106.16 mi (8,217.57 km) |
| Castelo Branco to Mercer Island (Washington) | 5,194.47 mi (8,359.70 km) |
| Castelo Branco to Mercerville (New Jersey) | 3,464.32 mi (5,575.29 km) |
| Castelo Branco to Meriden (Connecticut) | 3,338.93 mi (5,373.49 km) |
| Castelo Branco to Meridian (Idaho) | 5,170.75 mi (8,321.52 km) |
| Castelo Branco to Meridian (Mississippi) | 4,404.60 mi (7,088.52 km) |
| Castelo Branco to Merriam (Kansas) | 4,448.41 mi (7,159.03 km) |
