| Slovenj Gradec to Joliet (Illinois) | 4,747.88 mi (7,640.98 km) |
| Slovenj Gradec to Jonesboro (Arkansas) | 5,123.59 mi (8,245.63 km) |
| Slovenj Gradec to Joplin (Missouri) | 5,204.40 mi (8,375.67 km) |
| Slovenj Gradec to Joppatowne (Maryland) | 4,382.15 mi (7,052.39 km) |
| Slovenj Gradec to Juana Díaz (Puerto Rico) | 4,926.39 mi (7,928.26 km) |
| Slovenj Gradec to Junction City (Kansas) | 5,188.80 mi (8,350.57 km) |
| Slovenj Gradec to Juneau (Alaska) | 4,975.52 mi (8,007.32 km) |
| Slovenj Gradec to Jupiter (Florida) | 5,124.05 mi (8,246.37 km) |
| Slovenj Gradec to Jupiter Farms (Florida) | 5,128.60 mi (8,253.69 km) |
| Slovenj Gradec to Jurupa Valley (California) | 6,139.76 mi (9,880.99 km) |
| Slovenj Gradec to Justice (Illinois) | 4,725.10 mi (7,604.31 km) |
| Slovenj Gradec to Kahului (Hawaii) | 7,751.26 mi (12,474.45 km) |
| Slovenj Gradec to Kailua (Hawaii) | 7,723.81 mi (12,430.27 km) |
| Slovenj Gradec to Kalamazoo (Michigan) | 4,616.21 mi (7,429.07 km) |
| Slovenj Gradec to Kalispell (Montana) | 5,218.76 mi (8,398.78 km) |
