| Risca to Medford (New York) | 3,290.92 mi (5,296.23 km) |
| Risca to Medford (Oregon) | 5,012.27 mi (8,066.46 km) |
| Risca to Medina (Ohio) | 3,638.03 mi (5,854.84 km) |
| Risca to Medulla (Florida) | 4,267.52 mi (6,867.91 km) |
| Risca to Mehlville (Missouri) | 4,092.95 mi (6,586.96 km) |
| Risca to Melbourne (Florida) | 4,204.01 mi (6,765.70 km) |
| Risca to Melissa (Texas) | 4,594.48 mi (7,394.10 km) |
| Risca to Melrose (Massachusetts) | 3,143.52 mi (5,059.01 km) |
| Risca to Melrose Park (Illinois) | 3,838.66 mi (6,177.73 km) |
| Risca to Melville (New York) | 3,310.05 mi (5,327.01 km) |
| Risca to Melvindale (Michigan) | 3,639.20 mi (5,856.73 km) |
| Risca to Memphis (Florida) | 4,312.43 mi (6,940.18 km) |
| Risca to Memphis (Tennessee) | 4,243.34 mi (6,828.99 km) |
| Risca to Menasha (Wisconsin) | 3,755.67 mi (6,044.16 km) |
| Risca to Mendota (California) | 5,255.23 mi (8,457.48 km) |
