| Port Huron to Poljcane | 4,491.46 mi (7,228.31 km) |
| Port Huron to Polzela | 4,473.51 mi (7,199.41 km) |
| Port Huron to Postojna | 4,461.14 mi (7,179.51 km) |
| Port Huron to Prebold | 4,476.01 mi (7,203.44 km) |
| Port Huron to Preddvor | 4,447.42 mi (7,157.44 km) |
| Port Huron to Prevalje | 4,456.48 mi (7,172.01 km) |
| Port Huron to Ptuj | 4,498.11 mi (7,239.01 km) |
| Port Huron to Puconci | 4,497.17 mi (7,237.49 km) |
| Port Huron to Race | 4,489.56 mi (7,225.25 km) |
| Port Huron to Radece | 4,486.19 mi (7,219.82 km) |
| Port Huron to Radenci | 4,495.36 mi (7,234.58 km) |
| Port Huron to Radlje ob Dravi | 4,465.54 mi (7,186.58 km) |
| Port Huron to Radovljica | 4,436.35 mi (7,139.61 km) |
| Port Huron to Ravne na Koroskem | 4,458.48 mi (7,175.23 km) |
| Port Huron to Razkrizje | 4,509.88 mi (7,257.94 km) |
