| Houston to Rosemont (California) | 1,596.20 mi (2,568.83 km) |
| Houston to Rosemount (Minnesota) | 1,041.41 mi (1,675.99 km) |
| Houston to Rosenberg (Texas) | 30.89 mi (49.71 km) |
| Houston to Roseville (California) | 1,598.23 mi (2,572.11 km) |
| Houston to Roseville (Michigan) | 1,117.75 mi (1,798.85 km) |
| Houston to Roseville (Minnesota) | 1,059.26 mi (1,704.72 km) |
| Houston to Rossmoor (California) | 1,358.12 mi (2,185.68 km) |
| Houston to Rossville (Maryland) | 1,258.98 mi (2,026.13 km) |
| Houston to Roswell (Georgia) | 710.36 mi (1,143.22 km) |
| Houston to Roswell (New Mexico) | 592.07 mi (952.85 km) |
| Houston to Round Lake (Illinois) | 957.31 mi (1,540.64 km) |
| Houston to Round Lake Beach (Illinois) | 960.08 mi (1,545.09 km) |
| Houston to Round Rock (Texas) | 145.27 mi (233.79 km) |
| Houston to Rowland Heights (California) | 1,348.62 mi (2,170.39 km) |
| Houston to Rowlett (Texas) | 226.80 mi (365.01 km) |
