| Havre de Grace to Romeoville (Illinois) | 644.53 mi (1,037.27 km) |
| Havre de Grace to Romulus (Michigan) | 421.29 mi (678.00 km) |
| Havre de Grace to Ronkonkoma (New York) | 180.11 mi (289.85 km) |
| Havre de Grace to Roosevelt (New York) | 154.91 mi (249.30 km) |
| Havre de Grace to Rosamond (California) | 2,318.03 mi (3,730.51 km) |
| Havre de Grace to Rosaryville (Maryland) | 66.07 mi (106.33 km) |
| Havre de Grace to Roscoe (Illinois) | 700.45 mi (1,127.27 km) |
| Havre de Grace to Rose Hill (Virginia) | 74.82 mi (120.41 km) |
| Havre de Grace to Roseburg (Oregon) | 2,429.26 mi (3,909.51 km) |
| Havre de Grace to Rosedale (California) | 2,357.89 mi (3,794.65 km) |
| Havre de Grace to Rosedale (Maryland) | 25.99 mi (41.83 km) |
| Havre de Grace to Roselle (Illinois) | 648.03 mi (1,042.90 km) |
| Havre de Grace to Roselle (New Jersey) | 124.23 mi (199.93 km) |
| Havre de Grace to Roselle Park (New Jersey) | 124.48 mi (200.33 km) |
| Havre de Grace to Rosemead (California) | 2,330.92 mi (3,751.25 km) |
