| Grayslake to Romeoville (Illinois) | 49.08 mi (78.99 km) |
| Grayslake to Romulus (Michigan) | 238.72 mi (384.18 km) |
| Grayslake to Ronkonkoma (New York) | 776.91 mi (1,250.32 km) |
| Grayslake to Roosevelt (New York) | 755.45 mi (1,215.78 km) |
| Grayslake to Rosamond (California) | 1,699.22 mi (2,734.63 km) |
| Grayslake to Rosaryville (Maryland) | 637.40 mi (1,025.79 km) |
| Grayslake to Roscoe (Illinois) | 50.09 mi (80.61 km) |
| Grayslake to Rose Hill (Virginia) | 623.19 mi (1,002.93 km) |
| Grayslake to Roseburg (Oregon) | 1,778.67 mi (2,862.49 km) |
| Grayslake to Rosedale (California) | 1,733.54 mi (2,789.86 km) |
| Grayslake to Rosedale (Maryland) | 636.86 mi (1,024.92 km) |
| Grayslake to Roselle (Illinois) | 24.99 mi (40.22 km) |
| Grayslake to Roselle (New Jersey) | 721.45 mi (1,161.06 km) |
| Grayslake to Roselle Park (New Jersey) | 720.90 mi (1,160.18 km) |
| Grayslake to Rosemead (California) | 1,717.95 mi (2,764.78 km) |
