| Owings Mills to Ridgeland (Mississippi) | 888.29 mi (1,429.56 km) |
| Owings Mills to Ridgewood (New Jersey) | 178.20 mi (286.78 km) |
| Owings Mills to Rifle (Colorado) | 1,644.13 mi (2,645.97 km) |
| Owings Mills to Rincon (Georgia) | 550.92 mi (886.62 km) |
| Owings Mills to Ringwood (New Jersey) | 176.96 mi (284.79 km) |
| Owings Mills to Río Grande (Puerto Rico) | 1,594.04 mi (2,565.36 km) |
| Owings Mills to Rio Grande City (Texas) | 1,556.32 mi (2,504.65 km) |
| Owings Mills to Rio Linda (California) | 2,371.44 mi (3,816.47 km) |
| Owings Mills to Rio Rancho (New Mexico) | 1,659.35 mi (2,670.47 km) |
| Owings Mills to Rio Rico (Arizona) | 1,987.70 mi (3,198.89 km) |
| Owings Mills to Ripon (California) | 2,373.54 mi (3,819.85 km) |
| Owings Mills to River Edge (New Jersey) | 179.10 mi (288.24 km) |
| Owings Mills to River Falls (Wisconsin) | 892.34 mi (1,436.09 km) |
| Owings Mills to River Forest (Illinois) | 602.51 mi (969.64 km) |
| Owings Mills to River Grove (Illinois) | 603.89 mi (971.86 km) |
