| Opelika to Keene (New Hampshire) | 1,005.11 mi (1,617.57 km) |
| Opelika to Keizer (Oregon) | 2,174.11 mi (3,498.90 km) |
| Opelika to Keller (Texas) | 688.06 mi (1,107.32 km) |
| Opelika to Kelso (Washington) | 2,182.37 mi (3,512.19 km) |
| Opelika to Kemp Mill (Maryland) | 642.31 mi (1,033.69 km) |
| Opelika to Ken Caryl (Colorado) | 1,197.43 mi (1,927.08 km) |
| Opelika to Kendale Lakes (Florida) | 566.05 mi (910.98 km) |
| Opelika to Kendall (Florida) | 570.00 mi (917.32 km) |
| Opelika to Kendall Park (New Jersey) | 803.40 mi (1,292.95 km) |
| Opelika to Kendall West (Florida) | 565.16 mi (909.54 km) |
| Opelika to Kenmore (New York) | 794.92 mi (1,279.29 km) |
| Opelika to Kenmore (Washington) | 2,179.04 mi (3,506.82 km) |
| Opelika to Kenner (Louisiana) | 341.11 mi (548.97 km) |
| Opelika to Kennesaw (Georgia) | 103.98 mi (167.34 km) |
| Opelika to Kennett (Missouri) | 363.20 mi (584.52 km) |
