| Rancho Santa Margarita to Kennewick (Washington) | 872.18 mi (1,403.63 km) |
| Rancho Santa Margarita to Kenosha (Wisconsin) | 1,719.27 mi (2,766.90 km) |
| Rancho Santa Margarita to Kent (Ohio) | 2,040.04 mi (3,283.13 km) |
| Rancho Santa Margarita to Kent (Washington) | 980.46 mi (1,577.90 km) |
| Rancho Santa Margarita to Kentwood (Michigan) | 1,837.03 mi (2,956.42 km) |
| Rancho Santa Margarita to Kerman (California) | 254.98 mi (410.35 km) |
| Rancho Santa Margarita to Kernersville (North Carolina) | 2,120.37 mi (3,412.41 km) |
| Rancho Santa Margarita to Kerrville (Texas) | 1,110.38 mi (1,786.98 km) |
| Rancho Santa Margarita to Kettering (Maryland) | 2,283.25 mi (3,674.53 km) |
| Rancho Santa Margarita to Kettering (Ohio) | 1,889.02 mi (3,040.09 km) |
| Rancho Santa Margarita to Kewanee (Illinois) | 1,598.46 mi (2,572.47 km) |
| Rancho Santa Margarita to Key Biscayne (Florida) | 2,300.20 mi (3,701.81 km) |
| Rancho Santa Margarita to Key Largo (Florida) | 2,301.51 mi (3,703.92 km) |
| Rancho Santa Margarita to Key West (Florida) | 2,239.09 mi (3,603.47 km) |
| Rancho Santa Margarita to Keystone (Florida) | 2,099.65 mi (3,379.06 km) |
