| Karlovac to Oswego (Illinois) | 4,809.15 mi (7,739.58 km) |
| Karlovac to Oswego (New York) | 4,271.63 mi (6,874.53 km) |
| Karlovac to Otsego (Minnesota) | 4,826.09 mi (7,766.85 km) |
| Karlovac to Ottawa (Illinois) | 4,843.09 mi (7,794.20 km) |
| Karlovac to Ottawa (Kansas) | 5,217.48 mi (8,396.72 km) |
| Karlovac to Ottumwa (Iowa) | 4,992.28 mi (8,034.30 km) |
| Karlovac to Overland (Missouri) | 5,029.98 mi (8,094.98 km) |
| Karlovac to Overland Park (Kansas) | 5,181.80 mi (8,339.30 km) |
| Karlovac to Overlea (Maryland) | 4,446.95 mi (7,156.67 km) |
| Karlovac to Oviedo (Florida) | 5,136.98 mi (8,267.17 km) |
| Karlovac to Owasso (Oklahoma) | 5,356.60 mi (8,620.62 km) |
| Karlovac to Owatonna (Minnesota) | 4,870.21 mi (7,837.84 km) |
| Karlovac to Owensboro (Kentucky) | 4,949.54 mi (7,965.51 km) |
| Karlovac to Owings Mills (Maryland) | 4,456.24 mi (7,171.63 km) |
| Karlovac to Owosso (Michigan) | 4,590.93 mi (7,388.38 km) |
