| Owings Mills to Reidsville (North Carolina) | 264.16 mi (425.13 km) |
| Owings Mills to Reisterstown (Maryland) | 3.24 mi (5.22 km) |
| Owings Mills to Rendon (Texas) | 1,232.91 mi (1,984.18 km) |
| Owings Mills to Reno (Nevada) | 2,273.67 mi (3,659.13 km) |
| Owings Mills to Renton (Washington) | 2,309.70 mi (3,717.10 km) |
| Owings Mills to Republic (Missouri) | 915.36 mi (1,473.12 km) |
| Owings Mills to Reston (Virginia) | 43.60 mi (70.17 km) |
| Owings Mills to Revere (Massachusetts) | 366.58 mi (589.96 km) |
| Owings Mills to Rexburg (Idaho) | 1,819.49 mi (2,928.18 km) |
| Owings Mills to Reynoldsburg (Ohio) | 321.36 mi (517.18 km) |
| Owings Mills to Rialto (California) | 2,257.44 mi (3,632.99 km) |
| Owings Mills to Richardson (Texas) | 1,193.23 mi (1,920.32 km) |
| Owings Mills to Richfield (Minnesota) | 923.18 mi (1,485.72 km) |
| Owings Mills to Richfield (Wisconsin) | 649.54 mi (1,045.33 km) |
| Owings Mills to Richland (Washington) | 2,177.34 mi (3,504.10 km) |
