| Hackettstown to Casamassima | 4,540.15 mi (7,306.66 km) |
| Hackettstown to Casandrino | 4,424.52 mi (7,120.57 km) |
| Hackettstown to Casapulla | 4,421.00 mi (7,114.91 km) |
| Hackettstown to Casarano | 4,630.78 mi (7,452.53 km) |
| Hackettstown to Casatenovo | 4,043.78 mi (6,507.84 km) |
| Hackettstown to Casciana Terme | 4,172.69 mi (6,715.30 km) |
| Hackettstown to Cascina | 4,164.36 mi (6,701.88 km) |
| Hackettstown to Caselle Torinese | 3,989.15 mi (6,419.92 km) |
| Hackettstown to Caserta | 4,423.19 mi (7,118.43 km) |
| Hackettstown to Casier | 4,171.73 mi (6,713.74 km) |
| Hackettstown to Casorate Primo | 4,043.61 mi (6,507.56 km) |
| Hackettstown to Casoria | 4,427.96 mi (7,126.11 km) |
| Hackettstown to Cassano al Ionio | 4,559.09 mi (7,337.15 km) |
| Hackettstown to Cassano d'Adda | 4,057.90 mi (6,530.56 km) |
| Hackettstown to Cassano delle Murge | 4,536.22 mi (7,300.35 km) |
