| Hennef to Portage (Michigan) | 4,159.58 mi (6,694.19 km) |
| Hennef to Portage (Wisconsin) | 4,236.72 mi (6,818.35 km) |
| Hennef to Portales (New Mexico) | 5,214.73 mi (8,392.30 km) |
| Hennef to Porterville (California) | 5,608.71 mi (9,026.34 km) |
| Hennef to Portland (Maine) | 3,501.95 mi (5,635.85 km) |
| Hennef to Portland (Oregon) | 5,141.53 mi (8,274.50 km) |
| Hennef to Portland (Tennessee) | 4,466.92 mi (7,188.81 km) |
| Hennef to Portland (Texas) | 5,334.18 mi (8,584.54 km) |
| Hennef to Portsmouth (New Hampshire) | 3,548.32 mi (5,710.47 km) |
| Hennef to Portsmouth (Ohio) | 4,222.79 mi (6,795.92 km) |
| Hennef to Portsmouth (Virginia) | 4,050.41 mi (6,518.50 km) |
| Hennef to Post Falls (Idaho) | 4,870.18 mi (7,837.80 km) |
| Hennef to Potomac (Maryland) | 3,983.67 mi (6,411.09 km) |
| Hennef to Potomac Park (California) | 5,648.21 mi (9,089.91 km) |
| Hennef to Pottstown (Pennsylvania) | 3,865.32 mi (6,220.63 km) |
