| Maryland Heights to Rosemont (California) | 1,658.75 mi (2,669.50 km) |
| Maryland Heights to Rosemount (Minnesota) | 437.31 mi (703.79 km) |
| Maryland Heights to Rosenberg (Texas) | 703.39 mi (1,131.99 km) |
| Maryland Heights to Roseville (California) | 1,654.20 mi (2,662.18 km) |
| Maryland Heights to Roseville (Michigan) | 473.87 mi (762.63 km) |
| Maryland Heights to Roseville (Minnesota) | 456.30 mi (734.35 km) |
| Maryland Heights to Rossmoor (California) | 1,569.00 mi (2,525.06 km) |
| Maryland Heights to Rossville (Maryland) | 751.78 mi (1,209.87 km) |
| Maryland Heights to Roswell (Georgia) | 469.45 mi (755.50 km) |
| Maryland Heights to Roswell (New Mexico) | 866.41 mi (1,394.35 km) |
| Maryland Heights to Round Lake (Illinois) | 279.60 mi (449.98 km) |
| Maryland Heights to Round Lake Beach (Illinois) | 282.37 mi (454.43 km) |
| Maryland Heights to Round Rock (Texas) | 697.63 mi (1,122.73 km) |
| Maryland Heights to Rowland Heights (California) | 1,554.43 mi (2,501.62 km) |
| Maryland Heights to Rowlett (Texas) | 525.64 mi (845.94 km) |
