| Ostrow Mazowiecka to Clarkston (Georgia) | 4,997.27 mi (8,042.33 km) |
| Ostrow Mazowiecka to Clarksville (Indiana) | 4,803.04 mi (7,729.74 km) |
| Ostrow Mazowiecka to Clarksville (Tennessee) | 4,951.68 mi (7,968.96 km) |
| Ostrow Mazowiecka to Clawson (Michigan) | 4,490.17 mi (7,226.23 km) |
| Ostrow Mazowiecka to Clay (Alabama) | 5,085.83 mi (8,184.85 km) |
| Ostrow Mazowiecka to Clayton (California) | 5,802.68 mi (9,338.51 km) |
| Ostrow Mazowiecka to Clayton (Missouri) | 4,934.06 mi (7,940.60 km) |
| Ostrow Mazowiecka to Clayton (North Carolina) | 4,692.01 mi (7,551.05 km) |
| Ostrow Mazowiecka to Clayton (Ohio) | 4,671.38 mi (7,517.86 km) |
| Ostrow Mazowiecka to Clearfield (Utah) | 5,390.49 mi (8,675.16 km) |
| Ostrow Mazowiecka to Clearlake (California) | 5,750.46 mi (9,254.48 km) |
| Ostrow Mazowiecka to Clearwater (Florida) | 5,264.88 mi (8,473.01 km) |
| Ostrow Mazowiecka to Cleburne (Texas) | 5,517.05 mi (8,878.84 km) |
| Ostrow Mazowiecka to Clemmons (North Carolina) | 4,741.38 mi (7,630.51 km) |
| Ostrow Mazowiecka to Clemson (South Carolina) | 4,899.64 mi (7,885.20 km) |
