| Risca to Manassas (Virginia) | 3,566.59 mi (5,739.88 km) |
| Risca to Manassas Park (Virginia) | 3,563.89 mi (5,735.52 km) |
| Risca to Manatí (Puerto Rico) | 4,092.08 mi (6,585.56 km) |
| Risca to Manchester (Missouri) | 4,096.53 mi (6,592.73 km) |
| Risca to Manchester (New Hampshire) | 3,137.86 mi (5,049.90 km) |
| Risca to Manchester (Tennessee) | 4,069.77 mi (6,549.66 km) |
| Risca to Manchester (Virginia) | 3,625.50 mi (5,834.68 km) |
| Risca to Mandan (North Dakota) | 4,081.36 mi (6,568.31 km) |
| Risca to Mandeville (Louisiana) | 4,483.40 mi (7,215.34 km) |
| Risca to Mango (Florida) | 4,279.33 mi (6,886.91 km) |
| Risca to Manhattan (Kansas) | 4,300.45 mi (6,920.91 km) |
| Risca to Manhattan (New York) | 3,332.97 mi (5,363.89 km) |
| Risca to Manhattan Beach (California) | 5,353.81 mi (8,616.13 km) |
| Risca to Manitowoc (Wisconsin) | 3,732.53 mi (6,006.92 km) |
| Risca to Mankato (Minnesota) | 3,963.68 mi (6,378.93 km) |
