| Monmouth to Oschatz | 679.50 mi (1,093.55 km) |
| Monmouth to Oschersleben | 594.66 mi (957.01 km) |
| Monmouth to Osnabruck | 458.40 mi (737.72 km) |
| Monmouth to Ostbevern | 450.09 mi (724.35 km) |
| Monmouth to Osterburg | 614.77 mi (989.37 km) |
| Monmouth to Ostercappeln | 466.14 mi (750.19 km) |
| Monmouth to Osterhofen | 726.06 mi (1,168.47 km) |
| Monmouth to Osterholz-Scharmbeck | 493.48 mi (794.17 km) |
| Monmouth to Osternienburg | 628.52 mi (1,011.51 km) |
| Monmouth to Osterode | 553.95 mi (891.49 km) |
| Monmouth to Osterwieck | 572.28 mi (921.00 km) |
| Monmouth to Ostfildern | 568.91 mi (915.57 km) |
| Monmouth to Osthofen | 503.72 mi (810.65 km) |
| Monmouth to Ostrhauderfehn | 443.99 mi (714.53 km) |
| Monmouth to Ostringen | 532.47 mi (856.93 km) |
