| Groningen to Portage (Michigan) | 4,047.58 mi (6,513.95 km) |
| Groningen to Portage (Wisconsin) | 4,117.23 mi (6,626.04 km) |
| Groningen to Portales (New Mexico) | 5,090.47 mi (8,192.31 km) |
| Groningen to Porterville (California) | 5,462.78 mi (8,791.50 km) |
| Groningen to Portland (Maine) | 3,408.31 mi (5,485.15 km) |
| Groningen to Portland (Oregon) | 4,985.49 mi (8,023.36 km) |
| Groningen to Portland (Tennessee) | 4,363.89 mi (7,023.00 km) |
| Groningen to Portland (Texas) | 5,227.86 mi (8,413.42 km) |
| Groningen to Portsmouth (New Hampshire) | 3,455.49 mi (5,561.08 km) |
| Groningen to Portsmouth (Ohio) | 4,121.19 mi (6,632.41 km) |
| Groningen to Portsmouth (Virginia) | 3,963.28 mi (6,378.28 km) |
| Groningen to Post Falls (Idaho) | 4,717.10 mi (7,591.44 km) |
| Groningen to Potomac (Maryland) | 3,890.44 mi (6,261.06 km) |
| Groningen to Potomac Park (California) | 5,502.92 mi (8,856.09 km) |
| Groningen to Pottstown (Pennsylvania) | 3,771.78 mi (6,070.10 km) |
