| Penarth to Wixom (Michigan) | 3,644.34 mi (5,864.99 km) |
| Penarth to Woburn (Massachusetts) | 3,146.43 mi (5,063.69 km) |
| Penarth to Wolf Trap (Virginia) | 3,550.13 mi (5,713.39 km) |
| Penarth to Wood Dale (Illinois) | 3,842.64 mi (6,184.12 km) |
| Penarth to Wood River (Illinois) | 4,068.50 mi (6,547.62 km) |
| Penarth to Woodbridge (Virginia) | 3,562.30 mi (5,732.97 km) |
| Penarth to Woodburn (Oregon) | 4,859.90 mi (7,821.26 km) |
| Penarth to Woodburn (Virginia) | 3,551.94 mi (5,716.29 km) |
| Penarth to Woodbury (Minnesota) | 3,894.72 mi (6,267.95 km) |
| Penarth to Woodbury (New York) | 3,315.71 mi (5,336.11 km) |
| Penarth to Woodcrest (California) | 5,325.43 mi (8,570.45 km) |
| Penarth to Woodhaven (Michigan) | 3,649.87 mi (5,873.90 km) |
| Penarth to Woodinville (Washington) | 4,693.51 mi (7,553.47 km) |
| Penarth to Woodland (California) | 5,194.89 mi (8,360.36 km) |
| Penarth to Woodlawn (Maryland) | 3,511.91 mi (5,651.87 km) |
