| Markham to Cockermouth | 3,747.86 mi (6,031.60 km) |
| Markham to Colchester | 3,989.57 mi (6,420.59 km) |
| Markham to Coleford | 3,858.66 mi (6,209.92 km) |
| Markham to Colne | 3,814.34 mi (6,138.58 km) |
| Markham to Colwyn Bay | 3,773.62 mi (6,073.05 km) |
| Markham to Congleton | 3,833.04 mi (6,168.68 km) |
| Markham to Conisbrough | 3,860.55 mi (6,212.95 km) |
| Markham to Connahs Quay | 3,799.87 mi (6,115.31 km) |
| Markham to Consett | 3,798.40 mi (6,112.93 km) |
| Markham to Conwy | 3,769.00 mi (6,065.62 km) |
| Markham to Cookstown | 3,623.24 mi (5,831.04 km) |
| Markham to Corby | 3,910.31 mi (6,293.03 km) |
| Markham to Corfe Mullen | 3,913.10 mi (6,297.53 km) |
| Markham to Corsham | 3,886.12 mi (6,254.10 km) |
| Markham to Coseley | 3,856.25 mi (6,206.03 km) |
