| Ronkonkoma to Butzbach | 3,804.61 mi (6,122.93 km) |
| Ronkonkoma to Buxtehude | 3,762.19 mi (6,054.66 km) |
| Ronkonkoma to Cadolzburg | 3,922.22 mi (6,312.21 km) |
| Ronkonkoma to Calbe | 3,885.53 mi (6,253.15 km) |
| Ronkonkoma to Calw | 3,856.83 mi (6,206.96 km) |
| Ronkonkoma to Castrop-Rauxel | 3,720.54 mi (5,987.63 km) |
| Ronkonkoma to Celle | 3,799.77 mi (6,115.14 km) |
| Ronkonkoma to Cham | 4,001.30 mi (6,439.47 km) |
| Ronkonkoma to Chemnitz | 3,961.83 mi (6,375.96 km) |
| Ronkonkoma to Clausthal-Zellerfeld | 3,832.42 mi (6,167.68 km) |
| Ronkonkoma to Cloppenburg | 3,715.35 mi (5,979.28 km) |
| Ronkonkoma to Coburg | 3,901.83 mi (6,279.39 km) |
| Ronkonkoma to Coesfeld | 3,704.14 mi (5,961.24 km) |
| Ronkonkoma to Cologne | 3,722.23 mi (5,990.36 km) |
| Ronkonkoma to Coswig | 3,978.62 mi (6,402.96 km) |
