| Caerphilly to Oschatz | 701.91 mi (1,129.62 km) |
| Caerphilly to Oschersleben | 617.94 mi (994.48 km) |
| Caerphilly to Osnabruck | 482.03 mi (775.76 km) |
| Caerphilly to Ostbevern | 473.26 mi (761.63 km) |
| Caerphilly to Osterburg | 639.09 mi (1,028.52 km) |
| Caerphilly to Ostercappeln | 489.89 mi (788.41 km) |
| Caerphilly to Osterhofen | 744.26 mi (1,197.78 km) |
| Caerphilly to Osterholz-Scharmbeck | 518.50 mi (834.44 km) |
| Caerphilly to Osternienburg | 651.54 mi (1,048.55 km) |
| Caerphilly to Osterode | 576.70 mi (928.10 km) |
| Caerphilly to Osterwieck | 595.46 mi (958.30 km) |
| Caerphilly to Ostfildern | 585.00 mi (941.47 km) |
| Caerphilly to Osthofen | 521.56 mi (839.37 km) |
| Caerphilly to Ostrhauderfehn | 469.00 mi (754.78 km) |
| Caerphilly to Ostringen | 549.34 mi (884.08 km) |
