| Williamstown to Clarksdale (Mississippi) | 939.25 mi (1,511.57 km) |
| Williamstown to Clarkston (Georgia) | 653.37 mi (1,051.50 km) |
| Williamstown to Clarksville (Indiana) | 586.52 mi (943.92 km) |
| Williamstown to Clarksville (Tennessee) | 704.92 mi (1,134.46 km) |
| Williamstown to Clawson (Michigan) | 468.47 mi (753.93 km) |
| Williamstown to Clay (Alabama) | 764.92 mi (1,231.02 km) |
| Williamstown to Clayton (California) | 2,501.47 mi (4,025.73 km) |
| Williamstown to Clayton (Missouri) | 824.52 mi (1,326.93 km) |
| Williamstown to Clayton (North Carolina) | 336.84 mi (542.09 km) |
| Williamstown to Clayton (Ohio) | 496.45 mi (798.96 km) |
| Williamstown to Clearfield (Utah) | 1,937.09 mi (3,117.44 km) |
| Williamstown to Clearlake (California) | 2,516.93 mi (4,050.60 km) |
| Williamstown to Clearwater (Florida) | 923.19 mi (1,485.73 km) |
| Williamstown to Cleburne (Texas) | 1,347.58 mi (2,168.72 km) |
| Williamstown to Clemmons (North Carolina) | 388.20 mi (624.75 km) |
