| Round Lake Beach to Reading (Pennsylvania) | 645.27 mi (1,038.46 km) |
| Round Lake Beach to Red Bank (New Jersey) | 739.24 mi (1,189.69 km) |
| Round Lake Beach to Red Bank (Tennessee) | 523.99 mi (843.28 km) |
| Round Lake Beach to Red Bluff (California) | 1,768.38 mi (2,845.93 km) |
| Round Lake Beach to Red Hill (South Carolina) | 771.39 mi (1,241.43 km) |
| Round Lake Beach to Red Oak (Texas) | 830.79 mi (1,337.03 km) |
| Round Lake Beach to Red Wing (Minnesota) | 273.01 mi (439.36 km) |
| Round Lake Beach to Redan (Georgia) | 633.64 mi (1,019.74 km) |
| Round Lake Beach to Redding (California) | 1,767.17 mi (2,843.98 km) |
| Round Lake Beach to Redland (Maryland) | 614.08 mi (988.26 km) |
| Round Lake Beach to Redlands (California) | 1,670.80 mi (2,688.90 km) |
| Round Lake Beach to Redmond (Oregon) | 1,657.62 mi (2,667.68 km) |
| Round Lake Beach to Redmond (Washington) | 1,687.43 mi (2,715.65 km) |
| Round Lake Beach to Redondo Beach (California) | 1,737.80 mi (2,796.71 km) |
| Round Lake Beach to Redwood City (California) | 1,827.15 mi (2,940.52 km) |
