| Keystone to Robertsville (New Jersey) | 966.67 mi (1,555.71 km) |
| Keystone to Robinson (Texas) | 899.56 mi (1,447.71 km) |
| Keystone to Robstown (Texas) | 919.34 mi (1,479.53 km) |
| Keystone to Rochester (Michigan) | 1,006.10 mi (1,619.16 km) |
| Keystone to Rochester (Minnesota) | 1,226.16 mi (1,973.31 km) |
| Keystone to Rochester (New Hampshire) | 1,231.44 mi (1,981.82 km) |
| Keystone to Rochester (New York) | 1,075.42 mi (1,730.72 km) |
| Keystone to Rochester Hills (Michigan) | 1,004.64 mi (1,616.81 km) |
| Keystone to Rock Hill (South Carolina) | 479.59 mi (771.82 km) |
| Keystone to Rock Island (Illinois) | 1,025.73 mi (1,650.75 km) |
| Keystone to Rock Springs (Wyoming) | 1,761.71 mi (2,835.20 km) |
| Keystone to Rockford (Illinois) | 1,041.34 mi (1,675.88 km) |
| Keystone to Rockledge (Florida) | 114.22 mi (183.82 km) |
| Keystone to Rocklin (California) | 2,326.81 mi (3,744.64 km) |
| Keystone to Rockport (Texas) | 881.74 mi (1,419.03 km) |
