| Gretna to Channelview (Texas) | 303.49 mi (488.42 km) |
| Gretna to Chantilly (Virginia) | 947.62 mi (1,525.05 km) |
| Gretna to Chaparral (New Mexico) | 978.99 mi (1,575.54 km) |
| Gretna to Chapel Hill (North Carolina) | 761.30 mi (1,225.19 km) |
| Gretna to Charleston (Illinois) | 669.96 mi (1,078.20 km) |
| Gretna to Charleston (South Carolina) | 627.52 mi (1,009.90 km) |
| Gretna to Charleston (West Virginia) | 755.42 mi (1,215.74 km) |
| Gretna to Charlotte (North Carolina) | 649.41 mi (1,045.12 km) |
| Gretna to Charlottesville (Virginia) | 867.36 mi (1,395.89 km) |
| Gretna to Chaska (Minnesota) | 1,048.01 mi (1,686.60 km) |
| Gretna to Chatham (Illinois) | 674.88 mi (1,086.11 km) |
| Gretna to Chattanooga (Tennessee) | 452.93 mi (728.92 km) |
| Gretna to Cheat Lake (West Virginia) | 887.05 mi (1,427.57 km) |
| Gretna to Chelsea (Alabama) | 310.17 mi (499.18 km) |
| Gretna to Chelsea (Massachusetts) | 1,361.91 mi (2,191.78 km) |
