| Hackettstown to Norwich | 3,520.31 mi (5,665.38 km) |
| Hackettstown to Nottingham | 3,416.32 mi (5,498.04 km) |
| Hackettstown to Nuneaton | 3,412.44 mi (5,491.79 km) |
| Hackettstown to Oadby | 3,426.57 mi (5,514.53 km) |
| Hackettstown to Oakengates | 3,369.52 mi (5,422.72 km) |
| Hackettstown to Oakham | 3,438.78 mi (5,534.18 km) |
| Hackettstown to Oldbury | 3,390.79 mi (5,456.95 km) |
| Hackettstown to Oldham | 3,366.34 mi (5,417.60 km) |
| Hackettstown to Ollerton | 3,416.46 mi (5,498.27 km) |
| Hackettstown to Olton | 3,400.61 mi (5,472.75 km) |
| Hackettstown to Omagh | 3,145.46 mi (5,062.13 km) |
| Hackettstown to Ormesby | 3,383.75 mi (5,445.61 km) |
| Hackettstown to Ormskirk | 3,335.51 mi (5,367.99 km) |
| Hackettstown to Orpington | 3,500.68 mi (5,633.80 km) |
| Hackettstown to Ossett | 3,384.87 mi (5,447.42 km) |
