| Hackettstown to Oschatz | 4,018.39 mi (6,466.97 km) |
| Hackettstown to Oschersleben | 3,925.08 mi (6,316.81 km) |
| Hackettstown to Osnabruck | 3,794.04 mi (6,105.91 km) |
| Hackettstown to Ostbevern | 3,792.83 mi (6,103.97 km) |
| Hackettstown to Osterburg | 3,921.89 mi (6,311.68 km) |
| Hackettstown to Ostercappeln | 3,799.30 mi (6,114.38 km) |
| Hackettstown to Osterhofen | 4,098.78 mi (6,596.35 km) |
| Hackettstown to Osterholz-Scharmbeck | 3,797.20 mi (6,111.00 km) |
| Hackettstown to Osternienburg | 3,961.02 mi (6,374.65 km) |
| Hackettstown to Osterode | 3,895.17 mi (6,268.67 km) |
| Hackettstown to Osterwieck | 3,906.08 mi (6,286.23 km) |
| Hackettstown to Ostfildern | 3,945.25 mi (6,349.27 km) |
| Hackettstown to Osthofen | 3,878.52 mi (6,241.87 km) |
| Hackettstown to Ostrhauderfehn | 3,754.78 mi (6,042.74 km) |
| Hackettstown to Ostringen | 3,908.53 mi (6,290.17 km) |
