| Round Lake Beach to Roy (Utah) | 1,233.69 mi (1,985.43 km) |
| Round Lake Beach to Royal Kunia (Hawaii) | 4,228.41 mi (6,804.96 km) |
| Round Lake Beach to Royal Oak (Michigan) | 251.35 mi (404.50 km) |
| Round Lake Beach to Royal Palm Beach (Florida) | 1,170.40 mi (1,883.58 km) |
| Round Lake Beach to Royse City (Texas) | 789.65 mi (1,270.81 km) |
| Round Lake Beach to Ruskin (Florida) | 1,062.47 mi (1,709.88 km) |
| Round Lake Beach to Russellville (Alabama) | 544.35 mi (876.04 km) |
| Round Lake Beach to Russellville (Arkansas) | 560.93 mi (902.74 km) |
| Round Lake Beach to Ruston (Louisiana) | 724.44 mi (1,165.87 km) |
| Round Lake Beach to Rutherford (New Jersey) | 729.21 mi (1,173.56 km) |
| Round Lake Beach to Rutland (Vermont) | 766.88 mi (1,234.18 km) |
| Round Lake Beach to Sabana Grande (Puerto Rico) | 2,086.59 mi (3,358.04 km) |
| Round Lake Beach to Sachse (Texas) | 798.05 mi (1,284.33 km) |
| Round Lake Beach to Saco (Maine) | 892.81 mi (1,436.83 km) |
| Round Lake Beach to Sacramento (California) | 1,762.93 mi (2,837.16 km) |
