| Washougal to Chivasso | 5,469.05 mi (8,801.58 km) |
| Washougal to Ciampino | 5,792.00 mi (9,321.33 km) |
| Washougal to Cicciano | 5,891.24 mi (9,481.04 km) |
| Washougal to Cingoli | 5,713.58 mi (9,195.12 km) |
| Washougal to Cinisello Balsamo | 5,482.89 mi (8,823.86 km) |
| Washougal to Cinisi | 6,023.25 mi (9,693.48 km) |
| Washougal to Cirie | 5,458.87 mi (8,785.19 km) |
| Washougal to Ciro Marina | 6,052.84 mi (9,741.10 km) |
| Washougal to Cislago | 5,470.60 mi (8,804.08 km) |
| Washougal to Cisterna di Latina | 5,810.40 mi (9,350.93 km) |
| Washougal to Cisternino | 5,976.21 mi (9,617.78 km) |
| Washougal to Citta di Castello | 5,683.60 mi (9,146.88 km) |
| Washougal to Citta Sant'Angelo | 5,785.43 mi (9,310.74 km) |
| Washougal to Cittadella | 5,541.69 mi (8,918.49 km) |
| Washougal to Cittanova | 6,089.53 mi (9,800.16 km) |
