| Castagneto Carducci to Kinston (North Carolina) | 4,529.30 mi (7,289.20 km) |
| Castagneto Carducci to Kirkland (Washington) | 5,532.48 mi (8,903.66 km) |
| Castagneto Carducci to Kirksville (Missouri) | 4,951.54 mi (7,968.73 km) |
| Castagneto Carducci to Kirkwood (Missouri) | 4,938.86 mi (7,948.33 km) |
| Castagneto Carducci to Kiryas Joel (New York) | 4,137.19 mi (6,658.16 km) |
| Castagneto Carducci to Kissimmee (Florida) | 5,004.82 mi (8,054.47 km) |
| Castagneto Carducci to Klamath Falls (Oregon) | 5,839.13 mi (9,397.17 km) |
| Castagneto Carducci to Knightdale (North Carolina) | 4,548.50 mi (7,320.10 km) |
| Castagneto Carducci to Knik-Fairview (Alaska) | 5,120.26 mi (8,240.26 km) |
| Castagneto Carducci to Knoxville (Tennessee) | 4,781.73 mi (7,695.44 km) |
| Castagneto Carducci to Kokomo (Indiana) | 4,679.71 mi (7,531.26 km) |
| Castagneto Carducci to Kuna (Idaho) | 5,612.71 mi (9,032.78 km) |
| Castagneto Carducci to Kyle (Texas) | 5,655.52 mi (9,101.68 km) |
| Castagneto Carducci to La Cañada Flintridge (California) | 6,191.97 mi (9,965.01 km) |
| Castagneto Carducci to La Crescenta-Montrose (California) | 6,191.83 mi (9,964.78 km) |
