| Gary to Portage (Michigan) | 99.68 mi (160.42 km) |
| Gary to Portage (Wisconsin) | 172.99 mi (278.40 km) |
| Gary to Portales (New Mexico) | 1,009.85 mi (1,625.19 km) |
| Gary to Porterville (California) | 1,737.39 mi (2,796.06 km) |
| Gary to Portland (Maine) | 878.26 mi (1,413.42 km) |
| Gary to Portland (Oregon) | 1,773.71 mi (2,854.52 km) |
| Gary to Portland (Tennessee) | 348.16 mi (560.31 km) |
| Gary to Portland (Texas) | 1,101.18 mi (1,772.18 km) |
| Gary to Portsmouth (New Hampshire) | 850.83 mi (1,369.28 km) |
| Gary to Portsmouth (Ohio) | 303.97 mi (489.20 km) |
| Gary to Portsmouth (Virginia) | 672.83 mi (1,082.81 km) |
| Gary to Post Falls (Idaho) | 1,504.42 mi (2,421.13 km) |
| Gary to Potomac (Maryland) | 563.42 mi (906.74 km) |
| Gary to Potomac Park (California) | 1,752.83 mi (2,820.90 km) |
| Gary to Pottstown (Pennsylvania) | 617.46 mi (993.70 km) |
