| Johnston to Kenosha (Wisconsin) | 305.78 mi (492.10 km) |
| Johnston to Kent (Ohio) | 641.06 mi (1,031.68 km) |
| Johnston to Kent (Washington) | 1,448.10 mi (2,330.49 km) |
| Johnston to Kentwood (Michigan) | 423.52 mi (681.59 km) |
| Johnston to Kerman (California) | 1,445.11 mi (2,325.68 km) |
| Johnston to Kernersville (North Carolina) | 827.35 mi (1,331.49 km) |
| Johnston to Kerrville (Texas) | 859.61 mi (1,383.41 km) |
| Johnston to Kettering (Maryland) | 911.65 mi (1,467.16 km) |
| Johnston to Kettering (Ohio) | 519.84 mi (836.60 km) |
| Johnston to Kewanee (Illinois) | 199.03 mi (320.31 km) |
| Johnston to Key Biscayne (Florida) | 1,348.90 mi (2,170.84 km) |
| Johnston to Key Largo (Florida) | 1,374.65 mi (2,212.29 km) |
| Johnston to Key West (Florida) | 1,367.27 mi (2,200.41 km) |
| Johnston to Keystone (Florida) | 1,126.94 mi (1,813.63 km) |
| Johnston to Kihei (Hawaii) | 3,885.33 mi (6,252.83 km) |
