| Box Elder to Kenosha (Wisconsin) | 770.03 mi (1,239.25 km) |
| Box Elder to Kent (Ohio) | 1,119.55 mi (1,801.74 km) |
| Box Elder to Kent (Washington) | 947.08 mi (1,524.17 km) |
| Box Elder to Kentwood (Michigan) | 878.97 mi (1,414.56 km) |
| Box Elder to Kerman (California) | 1,025.87 mi (1,650.97 km) |
| Box Elder to Kernersville (North Carolina) | 1,329.30 mi (2,139.30 km) |
| Box Elder to Kerrville (Texas) | 996.05 mi (1,602.98 km) |
| Box Elder to Kettering (Maryland) | 1,400.99 mi (2,254.67 km) |
| Box Elder to Kettering (Ohio) | 1,017.59 mi (1,637.66 km) |
| Box Elder to Kewanee (Illinois) | 696.21 mi (1,120.45 km) |
| Box Elder to Key Biscayne (Florida) | 1,806.34 mi (2,907.03 km) |
| Box Elder to Key Largo (Florida) | 1,827.24 mi (2,940.66 km) |
| Box Elder to Key West (Florida) | 1,805.93 mi (2,906.36 km) |
| Box Elder to Keystone (Florida) | 1,580.80 mi (2,544.04 km) |
| Box Elder to Kihei (Hawaii) | 3,430.79 mi (5,521.33 km) |
