| Gronau to Joliet (Illinois) | 4,225.85 mi (6,800.85 km) |
| Gronau to Jonesboro (Arkansas) | 4,607.53 mi (7,415.11 km) |
| Gronau to Joplin (Missouri) | 4,681.22 mi (7,533.70 km) |
| Gronau to Joppatowne (Maryland) | 3,883.14 mi (6,249.32 km) |
| Gronau to Juana Díaz (Puerto Rico) | 4,546.35 mi (7,316.65 km) |
| Gronau to Junction City (Kansas) | 4,660.92 mi (7,501.03 km) |
| Gronau to Juneau (Alaska) | 4,486.69 mi (7,220.63 km) |
| Gronau to Jupiter (Florida) | 4,654.20 mi (7,490.21 km) |
| Gronau to Jupiter Farms (Florida) | 4,658.42 mi (7,497.00 km) |
| Gronau to Jurupa Valley (California) | 5,605.81 mi (9,021.68 km) |
| Gronau to Justice (Illinois) | 4,203.07 mi (6,764.19 km) |
| Gronau to Kahului (Hawaii) | 7,290.00 mi (11,732.12 km) |
| Gronau to Kailua (Hawaii) | 7,268.90 mi (11,698.16 km) |
| Gronau to Kalamazoo (Michigan) | 4,095.98 mi (6,591.84 km) |
| Gronau to Kalispell (Montana) | 4,689.19 mi (7,546.53 km) |
