| Mackworth to Portage (Michigan) | 3,758.22 mi (6,048.28 km) |
| Mackworth to Portage (Wisconsin) | 3,838.99 mi (6,178.26 km) |
| Mackworth to Portales (New Mexico) | 4,819.59 mi (7,756.39 km) |
| Mackworth to Porterville (California) | 5,239.66 mi (8,432.42 km) |
| Mackworth to Portland (Maine) | 3,097.80 mi (4,985.43 km) |
| Mackworth to Portland (Oregon) | 4,797.52 mi (7,720.86 km) |
| Mackworth to Portland (Tennessee) | 4,063.17 mi (6,539.05 km) |
| Mackworth to Portland (Texas) | 4,930.90 mi (7,935.51 km) |
| Mackworth to Portsmouth (New Hampshire) | 3,144.21 mi (5,060.12 km) |
| Mackworth to Portsmouth (Ohio) | 3,818.89 mi (6,145.90 km) |
| Mackworth to Portsmouth (Virginia) | 3,647.06 mi (5,869.38 km) |
| Mackworth to Post Falls (Idaho) | 4,518.29 mi (7,271.49 km) |
| Mackworth to Potomac (Maryland) | 3,579.56 mi (5,760.75 km) |
| Mackworth to Potomac Park (California) | 5,277.94 mi (8,494.02 km) |
| Mackworth to Pottstown (Pennsylvania) | 3,461.19 mi (5,570.24 km) |
