| Round Lake Beach to Merriam (Kansas) | 416.79 mi (670.76 km) |
| Round Lake Beach to Merrick (New York) | 760.04 mi (1,223.17 km) |
| Round Lake Beach to Merrifield (Virginia) | 617.25 mi (993.36 km) |
| Round Lake Beach to Merrillville (Indiana) | 73.85 mi (118.85 km) |
| Round Lake Beach to Merritt Island (Florida) | 1,056.66 mi (1,700.54 km) |
| Round Lake Beach to Mesa (Arizona) | 1,423.85 mi (2,291.46 km) |
| Round Lake Beach to Mesquite (Nevada) | 1,433.27 mi (2,306.63 km) |
| Round Lake Beach to Mesquite (Texas) | 810.61 mi (1,304.55 km) |
| Round Lake Beach to Metairie (Louisiana) | 863.35 mi (1,389.42 km) |
| Round Lake Beach to Methuen Town (Massachusetts) | 858.64 mi (1,381.85 km) |
| Round Lake Beach to Metuchen (New Jersey) | 720.73 mi (1,159.91 km) |
| Round Lake Beach to Mexico (Missouri) | 297.80 mi (479.26 km) |
| Round Lake Beach to Miami (Florida) | 1,230.49 mi (1,980.29 km) |
| Round Lake Beach to Miami (Oklahoma) | 523.57 mi (842.61 km) |
| Round Lake Beach to Miami Beach (Florida) | 1,229.79 mi (1,979.16 km) |
