| Penarth to Wayne (Michigan) | 3,649.40 mi (5,873.14 km) |
| Penarth to Waynesboro (Pennsylvania) | 3,526.55 mi (5,675.43 km) |
| Penarth to Waynesboro (Virginia) | 3,655.79 mi (5,883.42 km) |
| Penarth to Weatherford (Oklahoma) | 4,564.73 mi (7,346.22 km) |
| Penarth to Weatherford (Texas) | 4,671.32 mi (7,517.76 km) |
| Penarth to Webb City (Missouri) | 4,322.52 mi (6,956.42 km) |
| Penarth to Webster (Texas) | 4,731.07 mi (7,613.92 km) |
| Penarth to Webster Groves (Missouri) | 4,092.48 mi (6,586.21 km) |
| Penarth to Weddington (North Carolina) | 3,871.97 mi (6,231.33 km) |
| Penarth to Weigelstown (Pennsylvania) | 3,485.51 mi (5,609.39 km) |
| Penarth to Weirton (West Virginia) | 3,619.31 mi (5,824.72 km) |
| Penarth to Wekiwa Springs (Florida) | 4,205.85 mi (6,768.65 km) |
| Penarth to Welby (Colorado) | 4,576.20 mi (7,364.69 km) |
| Penarth to Wellington (Colorado) | 4,533.43 mi (7,295.85 km) |
| Penarth to Wellington (Florida) | 4,258.73 mi (6,853.77 km) |
