| Gretna to Keizer (Oregon) | 2,066.77 mi (3,326.14 km) |
| Gretna to Keller (Texas) | 471.60 mi (758.97 km) |
| Gretna to Kelso (Washington) | 2,087.06 mi (3,358.81 km) |
| Gretna to Kemp Mill (Maryland) | 972.24 mi (1,564.68 km) |
| Gretna to Ken Caryl (Colorado) | 1,082.52 mi (1,742.15 km) |
| Gretna to Kendale Lakes (Florida) | 656.64 mi (1,056.76 km) |
| Gretna to Kendall (Florida) | 660.76 mi (1,063.39 km) |
| Gretna to Kendall Park (New Jersey) | 1,133.65 mi (1,824.44 km) |
| Gretna to Kendall West (Florida) | 654.99 mi (1,054.11 km) |
| Gretna to Kenmore (New York) | 1,093.13 mi (1,759.22 km) |
| Gretna to Kenmore (Washington) | 2,102.23 mi (3,383.22 km) |
| Gretna to Kenner (Louisiana) | 14.03 mi (22.57 km) |
| Gretna to Kennesaw (Georgia) | 426.85 mi (686.95 km) |
| Gretna to Kennett (Missouri) | 437.37 mi (703.89 km) |
| Gretna to Kennewick (Washington) | 1,925.54 mi (3,098.86 km) |
