| Romulus to Butzbach | 4,139.25 mi (6,661.49 km) |
| Romulus to Buxtehude | 4,069.88 mi (6,549.84 km) |
| Romulus to Cadolzburg | 4,258.51 mi (6,853.41 km) |
| Romulus to Calbe | 4,200.61 mi (6,760.23 km) |
| Romulus to Calw | 4,204.31 mi (6,766.18 km) |
| Romulus to Castrop-Rauxel | 4,049.78 mi (6,517.50 km) |
| Romulus to Celle | 4,113.47 mi (6,619.99 km) |
| Romulus to Cham | 4,334.36 mi (6,975.48 km) |
| Romulus to Chemnitz | 4,282.10 mi (6,891.37 km) |
| Romulus to Clausthal-Zellerfeld | 4,152.03 mi (6,682.05 km) |
| Romulus to Cloppenburg | 4,032.23 mi (6,489.24 km) |
| Romulus to Coburg | 4,231.70 mi (6,810.27 km) |
| Romulus to Coesfeld | 4,030.52 mi (6,486.50 km) |
| Romulus to Cologne | 4,057.27 mi (6,529.55 km) |
| Romulus to Coswig | 4,294.76 mi (6,911.74 km) |
