| Penarth to Burlingame (California) | 5,275.73 mi (8,490.46 km) |
| Penarth to Burlington (Iowa) | 4,017.34 mi (6,465.28 km) |
| Penarth to Burlington (Kentucky) | 3,848.95 mi (6,194.29 km) |
| Penarth to Burlington (North Carolina) | 3,770.19 mi (6,067.54 km) |
| Penarth to Burlington (Vermont) | 3,151.23 mi (5,071.42 km) |
| Penarth to Burlington (Wisconsin) | 3,821.74 mi (6,150.49 km) |
| Penarth to Burnsville (Minnesota) | 3,914.24 mi (6,299.35 km) |
| Penarth to Burr Ridge (Illinois) | 3,850.23 mi (6,196.34 km) |
| Penarth to Burton (Michigan) | 3,626.88 mi (5,836.90 km) |
| Penarth to Burtonsville (Maryland) | 3,527.92 mi (5,677.64 km) |
| Penarth to Butler (Pennsylvania) | 3,572.14 mi (5,748.81 km) |
| Penarth to Butte (Montana) | 4,516.66 mi (7,268.87 km) |
| Penarth to Byram (Mississippi) | 4,401.35 mi (7,083.29 km) |
| Penarth to Cabot (Arkansas) | 4,333.38 mi (6,973.89 km) |
| Penarth to Cadillac (Michigan) | 3,642.10 mi (5,861.40 km) |
