| Round Lake Beach to Mankato (Minnesota) | 321.32 mi (517.11 km) |
| Round Lake Beach to Manor (Texas) | 981.38 mi (1,579.38 km) |
| Round Lake Beach to Manorville (New York) | 795.62 mi (1,280.43 km) |
| Round Lake Beach to Mansfield (Ohio) | 307.88 mi (495.48 km) |
| Round Lake Beach to Mansfield (Texas) | 838.64 mi (1,349.66 km) |
| Round Lake Beach to Manteca (California) | 1,768.95 mi (2,846.85 km) |
| Round Lake Beach to Manville (New Jersey) | 709.24 mi (1,141.42 km) |
| Round Lake Beach to Maple Grove (Minnesota) | 328.11 mi (528.04 km) |
| Round Lake Beach to Maple Heights (Ohio) | 341.80 mi (550.07 km) |
| Round Lake Beach to Maple Valley (Washington) | 1,683.87 mi (2,709.93 km) |
| Round Lake Beach to Mapleton (Utah) | 1,226.39 mi (1,973.69 km) |
| Round Lake Beach to Maplewood (Minnesota) | 305.55 mi (491.73 km) |
| Round Lake Beach to Marana (Arizona) | 1,434.10 mi (2,307.96 km) |
| Round Lake Beach to Marco Island (Florida) | 1,192.53 mi (1,919.19 km) |
| Round Lake Beach to Margate (Florida) | 1,200.34 mi (1,931.76 km) |
