| Mercer Island to Poljcane | 5,468.09 mi (8,800.05 km) |
| Mercer Island to Polzela | 5,458.91 mi (8,785.26 km) |
| Mercer Island to Postojna | 5,470.32 mi (8,803.64 km) |
| Mercer Island to Prebold | 5,462.00 mi (8,790.23 km) |
| Mercer Island to Preddvor | 5,442.78 mi (8,759.31 km) |
| Mercer Island to Prevalje | 5,439.24 mi (8,753.61 km) |
| Mercer Island to Ptuj | 5,467.97 mi (8,799.84 km) |
| Mercer Island to Puconci | 5,456.75 mi (8,781.78 km) |
| Mercer Island to Race | 5,461.79 mi (8,789.90 km) |
| Mercer Island to Radece | 5,474.26 mi (8,809.97 km) |
| Mercer Island to Radenci | 5,457.74 mi (8,783.38 km) |
| Mercer Island to Radlje ob Dravi | 5,441.84 mi (8,757.80 km) |
| Mercer Island to Radovljica | 5,434.91 mi (8,746.64 km) |
| Mercer Island to Ravne na Koroskem | 5,440.41 mi (8,755.49 km) |
| Mercer Island to Razkrizje | 5,471.00 mi (8,804.72 km) |
