| Owings Mills to Commerce (California) | 2,301.13 mi (3,703.31 km) |
| Owings Mills to Commerce City (Colorado) | 1,486.75 mi (2,392.70 km) |
| Owings Mills to Compton (California) | 2,307.79 mi (3,714.03 km) |
| Owings Mills to Comstock Park (Michigan) | 525.18 mi (845.19 km) |
| Owings Mills to Concord (California) | 2,414.39 mi (3,885.58 km) |
| Owings Mills to Concord (Missouri) | 730.79 mi (1,176.09 km) |
| Owings Mills to Concord (New Hampshire) | 378.44 mi (609.04 km) |
| Owings Mills to Concord (North Carolina) | 348.68 mi (561.14 km) |
| Owings Mills to Conneaut (Ohio) | 263.40 mi (423.89 km) |
| Owings Mills to Connersville (Indiana) | 445.10 mi (716.32 km) |
| Owings Mills to Conroe (Texas) | 1,227.97 mi (1,976.23 km) |
| Owings Mills to Converse (Texas) | 1,398.55 mi (2,250.75 km) |
| Owings Mills to Conway (Arkansas) | 911.43 mi (1,466.81 km) |
| Owings Mills to Conway (Florida) | 797.45 mi (1,283.38 km) |
| Owings Mills to Conway (South Carolina) | 404.65 mi (651.22 km) |
