| Drogheda to Robertsville (New Jersey) | 3,197.30 mi (5,145.55 km) |
| Drogheda to Robinson (Texas) | 4,529.43 mi (7,289.41 km) |
| Drogheda to Robstown (Texas) | 4,744.20 mi (7,635.05 km) |
| Drogheda to Rochester (Michigan) | 3,437.55 mi (5,532.21 km) |
| Drogheda to Rochester (Minnesota) | 3,725.75 mi (5,996.01 km) |
| Drogheda to Rochester (New Hampshire) | 2,935.85 mi (4,724.79 km) |
| Drogheda to Rochester (New York) | 3,203.20 mi (5,155.05 km) |
| Drogheda to Rochester Hills (Michigan) | 3,439.95 mi (5,536.07 km) |
| Drogheda to Rock Hill (South Carolina) | 3,720.59 mi (5,987.71 km) |
| Drogheda to Rock Island (Illinois) | 3,776.82 mi (6,078.21 km) |
| Drogheda to Rock Springs (Wyoming) | 4,429.97 mi (7,129.34 km) |
| Drogheda to Rockford (Illinois) | 3,682.55 mi (5,926.49 km) |
| Drogheda to Rockledge (Florida) | 4,041.26 mi (6,503.78 km) |
| Drogheda to Rocklin (California) | 4,966.31 mi (7,992.50 km) |
| Drogheda to Rockport (Texas) | 4,708.48 mi (7,577.57 km) |
