| Ronkonkoma to Cold Springs (Nevada) | 2,442.12 mi (3,930.21 km) |
| Ronkonkoma to Coldwater (Michigan) | 620.18 mi (998.09 km) |
| Ronkonkoma to Colesville (Maryland) | 237.60 mi (382.38 km) |
| Ronkonkoma to College (Alaska) | 3,277.28 mi (5,274.28 km) |
| Ronkonkoma to College Park (Georgia) | 795.38 mi (1,280.05 km) |
| Ronkonkoma to College Park (Maryland) | 237.38 mi (382.03 km) |
| Ronkonkoma to College Station (Texas) | 1,472.98 mi (2,370.54 km) |
| Ronkonkoma to Collegedale (Tennessee) | 760.68 mi (1,224.20 km) |
| Ronkonkoma to Colleyville (Texas) | 1,430.51 mi (2,302.18 km) |
| Ronkonkoma to Collierville (Tennessee) | 984.93 mi (1,585.09 km) |
| Ronkonkoma to Collinsville (Illinois) | 907.40 mi (1,460.32 km) |
| Ronkonkoma to Colonia (New Jersey) | 64.03 mi (103.05 km) |
| Ronkonkoma to Colonial Heights (Virginia) | 335.11 mi (539.30 km) |
| Ronkonkoma to Colonial Park (Pennsylvania) | 196.42 mi (316.11 km) |
| Ronkonkoma to Colorado Springs (Colorado) | 1,674.68 mi (2,695.13 km) |
