| Mercer Island to Poyo | 5,016.79 mi (8,073.74 km) |
| Mercer Island to Pozoblanco | 5,360.50 mi (8,626.89 km) |
| Mercer Island to Premia de Mar | 5,413.10 mi (8,711.54 km) |
| Mercer Island to Priego de Cordoba | 5,434.68 mi (8,746.27 km) |
| Mercer Island to Puente-Genil | 5,417.91 mi (8,719.28 km) |
| Mercer Island to Puenteareas | 5,036.35 mi (8,105.22 km) |
| Mercer Island to Puerto de la Cruz | 5,458.32 mi (8,784.32 km) |
| Mercer Island to Puerto del Rosario | 5,560.84 mi (8,949.31 km) |
| Mercer Island to Puerto Real | 5,416.04 mi (8,716.28 km) |
| Mercer Island to Puertollano | 5,368.33 mi (8,639.49 km) |
| Mercer Island to Puigcerda | 5,347.04 mi (8,605.23 km) |
| Mercer Island to Pulpi | 5,516.39 mi (8,877.77 km) |
| Mercer Island to Puzol | 5,438.57 mi (8,752.54 km) |
| Mercer Island to Quintanar de la Orden | 5,353.36 mi (8,615.41 km) |
| Mercer Island to Rafelbunol | 5,438.92 mi (8,753.09 km) |
