| Ostrow Mazowiecka to Carlsbad (New Mexico) | 5,719.20 mi (9,204.17 km) |
| Ostrow Mazowiecka to Carmel (Indiana) | 4,726.18 mi (7,606.05 km) |
| Ostrow Mazowiecka to Carmichael (California) | 5,746.30 mi (9,247.78 km) |
| Ostrow Mazowiecka to Carney (Maryland) | 4,427.12 mi (7,124.76 km) |
| Ostrow Mazowiecka to Carnot-Moon (Pennsylvania) | 4,498.05 mi (7,238.90 km) |
| Ostrow Mazowiecka to Carol Stream (Illinois) | 4,683.67 mi (7,537.64 km) |
| Ostrow Mazowiecka to Carolina (Puerto Rico) | 5,124.89 mi (8,247.72 km) |
| Ostrow Mazowiecka to Carolina Forest (South Carolina) | 4,809.58 mi (7,740.27 km) |
| Ostrow Mazowiecka to Carpentersville (Illinois) | 4,677.51 mi (7,527.73 km) |
| Ostrow Mazowiecka to Carpinteria (California) | 5,980.67 mi (9,624.95 km) |
| Ostrow Mazowiecka to Carrboro (North Carolina) | 4,700.77 mi (7,565.16 km) |
| Ostrow Mazowiecka to Carroll (Iowa) | 4,880.37 mi (7,854.20 km) |
| Ostrow Mazowiecka to Carrollton (Georgia) | 5,039.33 mi (8,110.02 km) |
| Ostrow Mazowiecka to Carrollton (Texas) | 5,464.11 mi (8,793.64 km) |
| Ostrow Mazowiecka to Carrollwood (Florida) | 5,251.44 mi (8,451.38 km) |
