| Penarth to Hanahan (South Carolina) | 3,940.25 mi (6,341.21 km) |
| Penarth to Hanford (California) | 5,262.35 mi (8,468.94 km) |
| Penarth to Hannibal (Missouri) | 4,079.51 mi (6,565.34 km) |
| Penarth to Hanover (Pennsylvania) | 3,499.37 mi (5,631.69 km) |
| Penarth to Hanover Park (Illinois) | 3,848.28 mi (6,193.21 km) |
| Penarth to Happy Valley (Oregon) | 4,833.74 mi (7,779.15 km) |
| Penarth to Harker Heights (Texas) | 4,753.38 mi (7,649.82 km) |
| Penarth to Harlingen (Texas) | 5,008.36 mi (8,060.18 km) |
| Penarth to Harper Woods (Michigan) | 3,624.23 mi (5,832.64 km) |
| Penarth to Harrisburg (North Carolina) | 3,854.67 mi (6,203.49 km) |
| Penarth to Harrisburg (Pennsylvania) | 3,475.10 mi (5,592.63 km) |
| Penarth to Harrison (Arkansas) | 4,314.15 mi (6,942.95 km) |
| Penarth to Harrison (New Jersey) | 3,342.63 mi (5,379.44 km) |
| Penarth to Harrison (New York) | 3,312.85 mi (5,331.51 km) |
| Penarth to Harrison (Ohio) | 3,840.71 mi (6,181.03 km) |
