| Mugnano di Napoli to Joliet (Illinois) | 4,958.27 mi (7,979.56 km) |
| Mugnano di Napoli to Jonesboro (Arkansas) | 5,316.69 mi (8,556.39 km) |
| Mugnano di Napoli to Joplin (Missouri) | 5,415.76 mi (8,715.82 km) |
| Mugnano di Napoli to Joppatowne (Maryland) | 4,545.56 mi (7,315.38 km) |
| Mugnano di Napoli to Juana Díaz (Puerto Rico) | 4,933.57 mi (7,939.81 km) |
| Mugnano di Napoli to Junction City (Kansas) | 5,415.65 mi (8,715.65 km) |
| Mugnano di Napoli to Juneau (Alaska) | 5,334.65 mi (8,585.28 km) |
| Mugnano di Napoli to Jupiter (Florida) | 5,235.68 mi (8,426.01 km) |
| Mugnano di Napoli to Jupiter Farms (Florida) | 5,240.66 mi (8,434.03 km) |
| Mugnano di Napoli to Jurupa Valley (California) | 6,418.10 mi (10,328.93 km) |
| Mugnano di Napoli to Justice (Illinois) | 4,935.58 mi (7,943.05 km) |
| Mugnano di Napoli to Kahului (Hawaii) | 8,126.30 mi (13,078.01 km) |
| Mugnano di Napoli to Kailua (Hawaii) | 8,101.24 mi (13,037.69 km) |
| Mugnano di Napoli to Kalamazoo (Michigan) | 4,822.46 mi (7,760.99 km) |
| Mugnano di Napoli to Kalispell (Montana) | 5,523.79 mi (8,889.68 km) |
