| Grosseto to Odessa (Texas) | 5,779.69 mi (9,301.51 km) |
| Grosseto to Ogden (Utah) | 5,637.36 mi (9,072.46 km) |
| Grosseto to Oildale (California) | 6,186.44 mi (9,956.11 km) |
| Grosseto to Ojus (Florida) | 5,083.90 mi (8,181.74 km) |
| Grosseto to Okemos (Michigan) | 4,551.66 mi (7,325.18 km) |
| Grosseto to Oklahoma City (Oklahoma) | 5,408.53 mi (8,704.19 km) |
| Grosseto to Okmulgee (Oklahoma) | 5,340.92 mi (8,595.39 km) |
| Grosseto to Olathe (Kansas) | 5,138.19 mi (8,269.11 km) |
| Grosseto to Old Jamestown (Missouri) | 4,958.28 mi (7,979.58 km) |
| Grosseto to Oldsmar (Florida) | 5,108.49 mi (8,221.31 km) |
| Grosseto to Olean (New York) | 4,328.27 mi (6,965.68 km) |
| Grosseto to Olive Branch (Mississippi) | 5,116.20 mi (8,233.73 km) |
| Grosseto to Olivehurst (California) | 6,052.49 mi (9,740.54 km) |
| Grosseto to Olney (Maryland) | 4,384.62 mi (7,056.36 km) |
| Grosseto to Olympia (Washington) | 5,624.58 mi (9,051.89 km) |
