| Poggio Renatico to Olympia Heights (Florida) | 5,073.01 mi (8,164.22 km) |
| Poggio Renatico to Omaha (Nebraska) | 4,997.16 mi (8,042.16 km) |
| Poggio Renatico to On Top of the World Designated Place (Florida) | 5,004.92 mi (8,054.64 km) |
| Poggio Renatico to Onalaska (Wisconsin) | 4,693.35 mi (7,553.21 km) |
| Poggio Renatico to Oneida (New York) | 4,114.53 mi (6,621.69 km) |
| Poggio Renatico to Oneonta (New York) | 4,114.13 mi (6,621.05 km) |
| Poggio Renatico to Ontario (California) | 6,126.50 mi (9,859.65 km) |
| Poggio Renatico to Ontario (Oregon) | 5,534.52 mi (8,906.95 km) |
| Poggio Renatico to Opa-locka (Florida) | 5,061.00 mi (8,144.89 km) |
| Poggio Renatico to Opelika (Alabama) | 4,976.29 mi (8,008.57 km) |
| Poggio Renatico to Opelousas (Louisiana) | 5,363.70 mi (8,632.04 km) |
| Poggio Renatico to Orange (California) | 6,146.88 mi (9,892.45 km) |
| Poggio Renatico to Orange (Texas) | 5,453.83 mi (8,777.09 km) |
| Poggio Renatico to Orange City (Florida) | 4,967.89 mi (7,995.04 km) |
| Poggio Renatico to Orangeburg (South Carolina) | 4,742.18 mi (7,631.80 km) |
