| Witham to Clarkston (Georgia) | 4,222.12 mi (6,794.85 km) |
| Witham to Clarksville (Indiana) | 4,064.17 mi (6,540.65 km) |
| Witham to Clarksville (Tennessee) | 4,210.60 mi (6,776.30 km) |
| Witham to Clawson (Michigan) | 3,766.16 mi (6,061.05 km) |
| Witham to Clay (Alabama) | 4,323.10 mi (6,957.36 km) |
| Witham to Clayton (California) | 5,337.77 mi (8,590.31 km) |
| Witham to Clayton (Missouri) | 4,224.76 mi (6,799.09 km) |
| Witham to Clayton (North Carolina) | 3,897.60 mi (6,272.57 km) |
| Witham to Clayton (Ohio) | 3,934.77 mi (6,332.40 km) |
| Witham to Clearfield (Utah) | 4,857.35 mi (7,817.15 km) |
| Witham to Clearlake (California) | 5,298.49 mi (8,527.09 km) |
| Witham to Clearwater (Florida) | 4,452.40 mi (7,165.45 km) |
| Witham to Cleburne (Texas) | 4,813.88 mi (7,747.19 km) |
| Witham to Clemmons (North Carolina) | 3,958.81 mi (6,371.09 km) |
| Witham to Clemson (South Carolina) | 4,121.84 mi (6,633.47 km) |
