| South Plainfield to Kennewick (Washington) | 2,250.12 mi (3,621.22 km) |
| South Plainfield to Kenosha (Wisconsin) | 708.70 mi (1,140.55 km) |
| South Plainfield to Kent (Ohio) | 365.01 mi (587.43 km) |
| South Plainfield to Kent (Washington) | 2,383.63 mi (3,836.08 km) |
| South Plainfield to Kentwood (Michigan) | 597.53 mi (961.63 km) |
| South Plainfield to Kerman (California) | 2,449.92 mi (3,942.76 km) |
| South Plainfield to Kernersville (North Carolina) | 435.35 mi (700.63 km) |
| South Plainfield to Kerrville (Texas) | 1,564.66 mi (2,518.08 km) |
| South Plainfield to Kettering (Maryland) | 171.68 mi (276.29 km) |
| South Plainfield to Kettering (Ohio) | 517.50 mi (832.84 km) |
| South Plainfield to Kewanee (Illinois) | 810.20 mi (1,303.89 km) |
| South Plainfield to Key Biscayne (Florida) | 1,080.19 mi (1,738.40 km) |
| South Plainfield to Key Largo (Florida) | 1,122.21 mi (1,806.03 km) |
| South Plainfield to Key West (Florida) | 1,185.23 mi (1,907.44 km) |
| South Plainfield to Keystone (Florida) | 977.24 mi (1,572.71 km) |
