| Westerville to Cadillac (Michigan) | 312.30 mi (502.60 km) |
| Westerville to Caguas (Puerto Rico) | 1,816.25 mi (2,922.97 km) |
| Westerville to Cahokia (Illinois) | 402.38 mi (647.57 km) |
| Westerville to Calabasas (California) | 1,998.10 mi (3,215.63 km) |
| Westerville to Caldwell (Idaho) | 1,740.26 mi (2,800.68 km) |
| Westerville to Caledonia (Wisconsin) | 316.10 mi (508.71 km) |
| Westerville to Calera (Alabama) | 527.86 mi (849.51 km) |
| Westerville to Calexico (California) | 1,871.23 mi (3,011.45 km) |
| Westerville to Calhoun (Georgia) | 404.66 mi (651.24 km) |
| Westerville to California (Maryland) | 366.35 mi (589.58 km) |
| Westerville to California City (California) | 1,930.00 mi (3,106.04 km) |
| Westerville to Callaway (Florida) | 705.98 mi (1,136.16 km) |
| Westerville to Calumet City (Illinois) | 262.82 mi (422.97 km) |
| Westerville to Calverton (Maryland) | 326.34 mi (525.19 km) |
| Westerville to Camano (Washington) | 2,013.57 mi (3,240.53 km) |
