| Fort Collins to Cockermouth | 4,409.74 mi (7,096.78 km) |
| Fort Collins to Colchester | 4,664.58 mi (7,506.92 km) |
| Fort Collins to Coleford | 4,548.24 mi (7,319.68 km) |
| Fort Collins to Colne | 4,480.75 mi (7,211.07 km) |
| Fort Collins to Colwyn Bay | 4,451.57 mi (7,164.11 km) |
| Fort Collins to Congleton | 4,506.98 mi (7,253.28 km) |
| Fort Collins to Conisbrough | 4,527.46 mi (7,286.25 km) |
| Fort Collins to Connahs Quay | 4,476.29 mi (7,203.89 km) |
| Fort Collins to Consett | 4,452.72 mi (7,165.97 km) |
| Fort Collins to Conwy | 4,447.52 mi (7,157.60 km) |
| Fort Collins to Cookstown | 4,296.73 mi (6,914.91 km) |
| Fort Collins to Corby | 4,585.55 mi (7,379.74 km) |
| Fort Collins to Corfe Mullen | 4,610.59 mi (7,420.03 km) |
| Fort Collins to Corsham | 4,577.67 mi (7,367.04 km) |
| Fort Collins to Coseley | 4,536.07 mi (7,300.10 km) |
