| Killarney to Robertsville (New Jersey) | 3,092.17 mi (4,976.37 km) |
| Killarney to Robinson (Texas) | 4,444.16 mi (7,152.19 km) |
| Killarney to Robstown (Texas) | 4,653.07 mi (7,488.40 km) |
| Killarney to Rochester (Michigan) | 3,353.23 mi (5,396.51 km) |
| Killarney to Rochester (Minnesota) | 3,660.53 mi (5,891.05 km) |
| Killarney to Rochester (New Hampshire) | 2,833.67 mi (4,560.35 km) |
| Killarney to Rochester (New York) | 3,111.25 mi (5,007.08 km) |
| Killarney to Rochester Hills (Michigan) | 3,355.64 mi (5,400.37 km) |
| Killarney to Rock Hill (South Carolina) | 3,613.85 mi (5,815.93 km) |
| Killarney to Rock Island (Illinois) | 3,701.86 mi (5,957.58 km) |
| Killarney to Rock Springs (Wyoming) | 4,388.47 mi (7,062.56 km) |
| Killarney to Rockford (Illinois) | 3,607.01 mi (5,804.93 km) |
| Killarney to Rockledge (Florida) | 3,920.99 mi (6,310.23 km) |
| Killarney to Rocklin (California) | 4,942.42 mi (7,954.05 km) |
| Killarney to Rockport (Texas) | 4,616.66 mi (7,429.80 km) |
