| Tomball to River Grove (Illinois) | 924.83 mi (1,488.38 km) |
| Tomball to River Ridge (Louisiana) | 323.09 mi (519.96 km) |
| Tomball to Riverbank (California) | 1,538.97 mi (2,476.73 km) |
| Tomball to Riverdale (Georgia) | 699.82 mi (1,126.25 km) |
| Tomball to Riverdale (Illinois) | 913.59 mi (1,470.29 km) |
| Tomball to Riverside (California) | 1,300.39 mi (2,092.77 km) |
| Tomball to Riverside (Ohio) | 932.32 mi (1,500.42 km) |
| Tomball to Riverton (Utah) | 1,166.22 mi (1,876.84 km) |
| Tomball to Riverton (Wyoming) | 1,139.25 mi (1,833.45 km) |
| Tomball to Riverview (Florida) | 819.73 mi (1,319.22 km) |
| Tomball to Riverview (Michigan) | 1,082.47 mi (1,742.06 km) |
| Tomball to Riviera Beach (Florida) | 970.94 mi (1,562.58 km) |
| Tomball to Riviera Beach (Maryland) | 1,249.54 mi (2,010.94 km) |
| Tomball to Roanoke (Virginia) | 1,026.16 mi (1,651.44 km) |
| Tomball to Roanoke Rapids (North Carolina) | 1,124.72 mi (1,810.06 km) |
