| West Carrollton to Olympia (Washington) | 1,985.06 mi (3,194.64 km) |
| West Carrollton to Olympia Heights (Florida) | 989.82 mi (1,592.96 km) |
| West Carrollton to Omaha (Nebraska) | 629.37 mi (1,012.87 km) |
| West Carrollton to On Top of the World Designated Place (Florida) | 738.44 mi (1,188.40 km) |
| West Carrollton to Onalaska (Wisconsin) | 461.55 mi (742.79 km) |
| West Carrollton to Oneida (New York) | 503.49 mi (810.30 km) |
| West Carrollton to Oneonta (New York) | 515.52 mi (829.65 km) |
| West Carrollton to Ontario (California) | 1,873.18 mi (3,014.59 km) |
| West Carrollton to Ontario (Oregon) | 1,699.27 mi (2,734.71 km) |
| West Carrollton to Opa-locka (Florida) | 979.09 mi (1,575.69 km) |
| West Carrollton to Opelika (Alabama) | 488.29 mi (785.82 km) |
| West Carrollton to Opelousas (Louisiana) | 770.65 mi (1,240.24 km) |
| West Carrollton to Orange (California) | 1,890.72 mi (3,042.82 km) |
| West Carrollton to Orange (Texas) | 850.60 mi (1,368.91 km) |
| West Carrollton to Orange City (Florida) | 760.68 mi (1,224.19 km) |
