| Boppard to Joliet (Illinois) | 4,319.03 mi (6,950.80 km) |
| Boppard to Jonesboro (Arkansas) | 4,695.63 mi (7,556.88 km) |
| Boppard to Joplin (Missouri) | 4,775.49 mi (7,685.41 km) |
| Boppard to Joppatowne (Maryland) | 3,959.17 mi (6,371.67 km) |
| Boppard to Juana Díaz (Puerto Rico) | 4,568.24 mi (7,351.88 km) |
| Boppard to Junction City (Kansas) | 4,760.20 mi (7,660.81 km) |
| Boppard to Juneau (Alaska) | 4,623.04 mi (7,440.06 km) |
| Boppard to Jupiter (Florida) | 4,714.37 mi (7,587.04 km) |
| Boppard to Jupiter Farms (Florida) | 4,718.76 mi (7,594.11 km) |
| Boppard to Jurupa Valley (California) | 5,721.53 mi (9,207.91 km) |
| Boppard to Justice (Illinois) | 4,296.24 mi (6,914.13 km) |
| Boppard to Kahului (Hawaii) | 7,428.18 mi (11,954.50 km) |
| Boppard to Kailua (Hawaii) | 7,407.37 mi (11,921.01 km) |
| Boppard to Kalamazoo (Michigan) | 4,187.51 mi (6,739.15 km) |
| Boppard to Kalispell (Montana) | 4,812.26 mi (7,744.58 km) |
