| Lake Ronkonkoma to Butzbach | 3,802.99 mi (6,120.32 km) |
| Lake Ronkonkoma to Buxtehude | 3,760.51 mi (6,051.95 km) |
| Lake Ronkonkoma to Cadolzburg | 3,920.60 mi (6,309.60 km) |
| Lake Ronkonkoma to Calbe | 3,883.86 mi (6,250.47 km) |
| Lake Ronkonkoma to Calw | 3,855.24 mi (6,204.40 km) |
| Lake Ronkonkoma to Castrop-Rauxel | 3,718.90 mi (5,985.00 km) |
| Lake Ronkonkoma to Celle | 3,798.10 mi (6,112.45 km) |
| Lake Ronkonkoma to Cham | 3,999.68 mi (6,436.86 km) |
| Lake Ronkonkoma to Chemnitz | 3,960.18 mi (6,373.30 km) |
| Lake Ronkonkoma to Clausthal-Zellerfeld | 3,830.76 mi (6,165.01 km) |
| Lake Ronkonkoma to Cloppenburg | 3,713.68 mi (5,976.60 km) |
| Lake Ronkonkoma to Coburg | 3,900.20 mi (6,276.76 km) |
| Lake Ronkonkoma to Coesfeld | 3,702.50 mi (5,958.60 km) |
| Lake Ronkonkoma to Cologne | 3,720.61 mi (5,987.74 km) |
| Lake Ronkonkoma to Coswig | 3,976.95 mi (6,400.29 km) |
