| Karlovac to Orangevale (California) | 6,032.41 mi (9,708.23 km) |
| Karlovac to Orchards (Washington) | 5,639.16 mi (9,075.34 km) |
| Karlovac to Orcutt (California) | 6,241.94 mi (10,045.43 km) |
| Karlovac to Oregon (Ohio) | 4,623.33 mi (7,440.53 km) |
| Karlovac to Oregon (Wisconsin) | 4,789.04 mi (7,707.22 km) |
| Karlovac to Oregon City (Oregon) | 5,661.71 mi (9,111.64 km) |
| Karlovac to Orem (Utah) | 5,672.32 mi (9,128.71 km) |
| Karlovac to Orinda (California) | 6,106.21 mi (9,826.99 km) |
| Karlovac to Orland Park (Illinois) | 4,794.90 mi (7,716.64 km) |
| Karlovac to Orlando (Florida) | 5,152.18 mi (8,291.63 km) |
| Karlovac to Ormond Beach (Florida) | 5,102.70 mi (8,212.00 km) |
| Karlovac to Oro Valley (Arizona) | 6,099.50 mi (9,816.20 km) |
| Karlovac to Oroville (California) | 5,991.99 mi (9,643.18 km) |
| Karlovac to Oshkosh (Wisconsin) | 4,706.88 mi (7,574.99 km) |
| Karlovac to Oskaloosa (Iowa) | 4,986.90 mi (8,025.64 km) |
