| Bargoed to Mitchell (South Dakota) | 4,122.84 mi (6,635.08 km) |
| Bargoed to Mitchellville (Maryland) | 3,522.97 mi (5,669.68 km) |
| Bargoed to Moberly (Missouri) | 4,122.89 mi (6,635.15 km) |
| Bargoed to Mobile (Alabama) | 4,379.60 mi (7,048.29 km) |
| Bargoed to Modesto (California) | 5,216.06 mi (8,394.44 km) |
| Bargoed to Mokena (Illinois) | 3,847.97 mi (6,192.71 km) |
| Bargoed to Moline (Illinois) | 3,950.67 mi (6,357.99 km) |
| Bargoed to Moncks Corner (South Carolina) | 3,922.00 mi (6,311.85 km) |
| Bargoed to Monfort Heights (Ohio) | 3,827.64 mi (6,160.00 km) |
| Bargoed to Monmouth (Oregon) | 4,871.41 mi (7,839.78 km) |
| Bargoed to Monroe (Georgia) | 4,045.52 mi (6,510.63 km) |
| Bargoed to Monroe (Louisiana) | 4,448.13 mi (7,158.58 km) |
| Bargoed to Monroe (Michigan) | 3,655.38 mi (5,882.76 km) |
| Bargoed to Monroe (North Carolina) | 3,857.72 mi (6,208.41 km) |
| Bargoed to Monroe (Ohio) | 3,805.90 mi (6,125.01 km) |
