| Penarth to Ukiah (California) | 5,211.86 mi (8,387.68 km) |
| Penarth to Union (Missouri) | 4,124.44 mi (6,637.64 km) |
| Penarth to Union City (California) | 5,264.03 mi (8,471.63 km) |
| Penarth to Union City (Georgia) | 4,098.24 mi (6,595.48 km) |
| Penarth to Union City (New Jersey) | 3,336.61 mi (5,369.75 km) |
| Penarth to Union City (Tennessee) | 4,144.13 mi (6,669.34 km) |
| Penarth to Union Hill-Novelty Hill (Washington) | 4,694.61 mi (7,555.24 km) |
| Penarth to Union Park (Florida) | 4,204.37 mi (6,766.28 km) |
| Penarth to Uniondale (New York) | 3,320.64 mi (5,344.06 km) |
| Penarth to Universal City (Texas) | 4,857.44 mi (7,817.29 km) |
| Penarth to University (Florida) | 4,279.34 mi (6,886.93 km) |
| Penarth to University City (Missouri) | 4,087.82 mi (6,578.71 km) |
| Penarth to University Heights (Ohio) | 3,610.24 mi (5,810.11 km) |
| Penarth to University of California-Santa Barbara (California) | 5,377.22 mi (8,653.80 km) |
| Penarth to University Park (Texas) | 4,628.06 mi (7,448.14 km) |
