| Penrith to Oswego (Illinois) | 3,789.49 mi (6,098.59 km) |
| Penrith to Oswego (New York) | 3,265.92 mi (5,255.98 km) |
| Penrith to Otsego (Minnesota) | 3,801.13 mi (6,117.33 km) |
| Penrith to Ottawa (Illinois) | 3,823.38 mi (6,153.14 km) |
| Penrith to Ottawa (Kansas) | 4,194.97 mi (6,751.16 km) |
| Penrith to Ottumwa (Iowa) | 3,969.71 mi (6,388.63 km) |
| Penrith to Overland (Missouri) | 4,012.56 mi (6,457.59 km) |
| Penrith to Overland Park (Kansas) | 4,159.49 mi (6,694.05 km) |
| Penrith to Overlea (Maryland) | 3,456.47 mi (5,562.66 km) |
| Penrith to Oviedo (Florida) | 4,177.52 mi (6,723.07 km) |
| Penrith to Owasso (Oklahoma) | 4,335.95 mi (6,978.04 km) |
| Penrith to Owatonna (Minnesota) | 3,845.41 mi (6,188.59 km) |
| Penrith to Owensboro (Kentucky) | 3,939.26 mi (6,339.63 km) |
| Penrith to Owings Mills (Maryland) | 3,464.81 mi (5,576.08 km) |
| Penrith to Owosso (Michigan) | 3,573.95 mi (5,751.72 km) |
