| Pottstown to Cortona | 4,299.85 mi (6,919.94 km) |
| Pottstown to Cosenza | 4,633.58 mi (7,457.03 km) |
| Pottstown to Cossato | 4,058.25 mi (6,531.13 km) |
| Pottstown to Costa Volpino | 4,132.19 mi (6,650.12 km) |
| Pottstown to Creazzo | 4,200.65 mi (6,760.29 km) |
| Pottstown to Crema | 4,129.68 mi (6,646.08 km) |
| Pottstown to Cremona | 4,152.33 mi (6,682.53 km) |
| Pottstown to Crevalcore | 4,214.07 mi (6,781.88 km) |
| Pottstown to Crispiano | 4,626.40 mi (7,445.47 km) |
| Pottstown to Crosia | 4,646.06 mi (7,477.11 km) |
| Pottstown to Crotone | 4,680.36 mi (7,532.31 km) |
| Pottstown to Cuneo | 4,069.39 mi (6,549.04 km) |
| Pottstown to Cuorgne | 4,041.62 mi (6,504.36 km) |
| Pottstown to Cusano Milanino | 4,102.34 mi (6,602.08 km) |
| Pottstown to Cutro | 4,676.40 mi (7,525.94 km) |
