| Boppard to Kaneohe (Hawaii) | 7,406.96 mi (11,920.35 km) |
| Boppard to Kankakee (Illinois) | 4,328.46 mi (6,965.99 km) |
| Boppard to Kannapolis (North Carolina) | 4,316.47 mi (6,946.68 km) |
| Boppard to Kansas City (Kansas) | 4,679.62 mi (7,531.12 km) |
| Boppard to Kansas City (Missouri) | 4,672.72 mi (7,520.01 km) |
| Boppard to Kapaa (Hawaii) | 7,376.29 mi (11,870.99 km) |
| Boppard to Kapolei (Hawaii) | 7,414.46 mi (11,932.43 km) |
| Boppard to Katy (Texas) | 5,205.91 mi (8,378.11 km) |
| Boppard to Kaukauna (Wisconsin) | 4,191.67 mi (6,745.84 km) |
| Boppard to Kaysville (Utah) | 5,149.79 mi (8,287.79 km) |
| Boppard to Kearney (Missouri) | 4,653.92 mi (7,489.77 km) |
| Boppard to Kearney (Nebraska) | 4,751.65 mi (7,647.05 km) |
| Boppard to Kearns (Utah) | 5,173.00 mi (8,325.14 km) |
| Boppard to Kearny (New Jersey) | 3,809.57 mi (6,130.90 km) |
| Boppard to Keene (New Hampshire) | 3,641.67 mi (5,860.70 km) |
