| Groningen to Caguas (Puerto Rico) | 4,499.89 mi (7,241.88 km) |
| Groningen to Cahokia (Illinois) | 4,395.87 mi (7,074.46 km) |
| Groningen to Calabasas (California) | 5,568.17 mi (8,961.10 km) |
| Groningen to Caldwell (Idaho) | 4,948.31 mi (7,963.54 km) |
| Groningen to Caledonia (Wisconsin) | 4,099.18 mi (6,597.00 km) |
| Groningen to Calera (Alabama) | 4,551.62 mi (7,325.13 km) |
| Groningen to Calexico (California) | 5,562.27 mi (8,951.61 km) |
| Groningen to Calhoun (Georgia) | 4,412.28 mi (7,100.88 km) |
| Groningen to California (Maryland) | 3,898.15 mi (6,273.47 km) |
| Groningen to California City (California) | 5,484.48 mi (8,826.41 km) |
| Groningen to Callaway (Florida) | 4,662.89 mi (7,504.19 km) |
| Groningen to Calumet City (Illinois) | 4,146.78 mi (6,673.61 km) |
| Groningen to Calverton (Maryland) | 3,878.90 mi (6,242.49 km) |
| Groningen to Camano (Washington) | 4,821.90 mi (7,760.10 km) |
| Groningen to Camarillo (California) | 5,573.30 mi (8,969.36 km) |
