| Grosseto to Oakley (California) | 6,119.74 mi (9,848.77 km) |
| Grosseto to Oakton (Virginia) | 4,404.95 mi (7,089.09 km) |
| Grosseto to Oakville (Missouri) | 4,977.39 mi (8,010.34 km) |
| Grosseto to Oatfield (Oregon) | 5,712.00 mi (9,192.57 km) |
| Grosseto to Ocala (Florida) | 5,034.23 mi (8,101.81 km) |
| Grosseto to Ocean Acres (New Jersey) | 4,238.29 mi (6,820.87 km) |
| Grosseto to Ocean City (New Jersey) | 4,270.75 mi (6,873.10 km) |
| Grosseto to Ocean Pines (Maryland) | 4,329.34 mi (6,967.41 km) |
| Grosseto to Ocean Pointe (Hawaii) | 7,955.37 mi (12,802.93 km) |
| Grosseto to Ocean Springs (Mississippi) | 5,279.37 mi (8,496.33 km) |
| Grosseto to Oceanside (California) | 6,255.92 mi (10,067.93 km) |
| Grosseto to Oceanside (New York) | 4,176.20 mi (6,720.95 km) |
| Grosseto to Ocoee (Florida) | 5,032.06 mi (8,098.32 km) |
| Grosseto to Oconomowoc (Wisconsin) | 4,698.36 mi (7,561.27 km) |
| Grosseto to Odenton (Maryland) | 4,371.17 mi (7,034.72 km) |
