| Riviera Beach to Morris (Illinois) | 1,114.60 mi (1,793.77 km) |
| Riviera Beach to Morristown (New Jersey) | 1,019.70 mi (1,641.05 km) |
| Riviera Beach to Morristown (Tennessee) | 678.11 mi (1,091.32 km) |
| Riviera Beach to Morrisville (North Carolina) | 629.92 mi (1,013.76 km) |
| Riviera Beach to Morro Bay (California) | 2,466.50 mi (3,969.44 km) |
| Riviera Beach to Morton (Illinois) | 1,096.08 mi (1,763.98 km) |
| Riviera Beach to Morton Grove (Illinois) | 1,141.21 mi (1,836.60 km) |
| Riviera Beach to Moscow (Idaho) | 2,431.27 mi (3,912.76 km) |
| Riviera Beach to Moses Lake (Washington) | 2,541.52 mi (4,090.19 km) |
| Riviera Beach to Moss Bluff (Louisiana) | 832.72 mi (1,340.14 km) |
| Riviera Beach to Moss Point (Mississippi) | 571.07 mi (919.04 km) |
| Riviera Beach to Moultrie (Georgia) | 376.00 mi (605.11 km) |
| Riviera Beach to Mounds View (Minnesota) | 1,459.52 mi (2,348.87 km) |
| Riviera Beach to Mount Airy (North Carolina) | 672.82 mi (1,082.80 km) |
| Riviera Beach to Mount Clemens (Michigan) | 1,104.21 mi (1,777.05 km) |
