| Os to Clarkston (Georgia) | 4,213.58 mi (6,781.10 km) |
| Os to Clarksville (Indiana) | 4,008.07 mi (6,450.37 km) |
| Os to Clarksville (Tennessee) | 4,156.80 mi (6,689.73 km) |
| Os to Clawson (Michigan) | 3,692.69 mi (5,942.82 km) |
| Os to Clay (Alabama) | 4,297.04 mi (6,915.42 km) |
| Os to Clayton (California) | 5,029.65 mi (8,094.44 km) |
| Os to Clayton (Missouri) | 4,132.71 mi (6,650.95 km) |
| Os to Clayton (North Carolina) | 3,919.11 mi (6,307.19 km) |
| Os to Clayton (Ohio) | 3,876.29 mi (6,238.28 km) |
| Os to Clearfield (Utah) | 4,598.53 mi (7,400.63 km) |
| Os to Clearlake (California) | 4,981.18 mi (8,016.44 km) |
| Os to Clearwater (Florida) | 4,499.43 mi (7,241.13 km) |
| Os to Cleburne (Texas) | 4,713.89 mi (7,586.27 km) |
| Os to Clemmons (North Carolina) | 3,962.22 mi (6,376.58 km) |
| Os to Clemson (South Carolina) | 4,117.53 mi (6,626.52 km) |
