| Penig to Olympia Heights (Florida) | 4,983.79 mi (8,020.63 km) |
| Penig to Omaha (Nebraska) | 4,761.74 mi (7,663.28 km) |
| Penig to On Top of the World Designated Place (Florida) | 4,888.11 mi (7,866.65 km) |
| Penig to Onalaska (Wisconsin) | 4,462.96 mi (7,182.44 km) |
| Penig to Oneida (New York) | 3,944.23 mi (6,347.62 km) |
| Penig to Oneonta (New York) | 3,949.99 mi (6,356.90 km) |
| Penig to Ontario (California) | 5,834.80 mi (9,390.20 km) |
| Penig to Ontario (Oregon) | 5,217.06 mi (8,396.05 km) |
| Penig to Opa-locka (Florida) | 4,971.24 mi (8,000.44 km) |
| Penig to Opelika (Alabama) | 4,826.46 mi (7,767.44 km) |
| Penig to Opelousas (Louisiana) | 5,194.39 mi (8,359.56 km) |
| Penig to Orange (California) | 5,855.01 mi (9,422.73 km) |
| Penig to Orange (Texas) | 5,278.77 mi (8,495.36 km) |
| Penig to Orange City (Florida) | 4,856.71 mi (7,816.12 km) |
| Penig to Orangeburg (South Carolina) | 4,607.86 mi (7,415.64 km) |
