| Westerville to Oakleaf Plantation (Florida) | 690.56 mi (1,111.35 km) |
| Westerville to Oakley (California) | 2,069.00 mi (3,329.73 km) |
| Westerville to Oakton (Virginia) | 311.43 mi (501.19 km) |
| Westerville to Oakville (Missouri) | 412.13 mi (663.26 km) |
| Westerville to Oatfield (Oregon) | 2,024.00 mi (3,257.32 km) |
| Westerville to Ocala (Florida) | 757.56 mi (1,219.17 km) |
| Westerville to Ocean Acres (New Jersey) | 458.35 mi (737.64 km) |
| Westerville to Ocean City (New Jersey) | 446.03 mi (717.82 km) |
| Westerville to Ocean Pines (Maryland) | 432.67 mi (696.32 km) |
| Westerville to Ocean Pointe (Hawaii) | 4,514.17 mi (7,264.86 km) |
| Westerville to Ocean Springs (Mississippi) | 747.95 mi (1,203.71 km) |
| Westerville to Oceanside (California) | 1,951.20 mi (3,140.16 km) |
| Westerville to Oceanside (New York) | 489.72 mi (788.13 km) |
| Westerville to Ocoee (Florida) | 801.53 mi (1,289.95 km) |
| Westerville to Oconomowoc (Wisconsin) | 353.67 mi (569.17 km) |
