| Penarth to Carlsbad (New Mexico) | 4,937.76 mi (7,946.56 km) |
| Penarth to Carmel (Indiana) | 3,862.36 mi (6,215.87 km) |
| Penarth to Carmichael (California) | 5,184.15 mi (8,343.08 km) |
| Penarth to Carney (Maryland) | 3,498.24 mi (5,629.87 km) |
| Penarth to Carnot-Moon (Pennsylvania) | 3,600.21 mi (5,793.98 km) |
| Penarth to Carol Stream (Illinois) | 3,850.65 mi (6,197.02 km) |
| Penarth to Carolina (Puerto Rico) | 4,066.59 mi (6,544.54 km) |
| Penarth to Carolina Forest (South Carolina) | 3,854.91 mi (6,203.88 km) |
| Penarth to Carpentersville (Illinois) | 3,847.46 mi (6,191.88 km) |
| Penarth to Carpinteria (California) | 5,367.06 mi (8,637.45 km) |
| Penarth to Carrboro (North Carolina) | 3,761.31 mi (6,053.24 km) |
| Penarth to Carroll (Iowa) | 4,098.90 mi (6,596.55 km) |
| Penarth to Carrollton (Georgia) | 4,120.31 mi (6,630.99 km) |
| Penarth to Carrollton (Texas) | 4,625.17 mi (7,443.50 km) |
| Penarth to Carrollwood (Florida) | 4,283.75 mi (6,894.02 km) |
