| Castelo Branco to Oststeinbek | 1,258.27 mi (2,024.99 km) |
| Castelo Branco to Ottendorf-Okrilla | 1,289.34 mi (2,074.99 km) |
| Castelo Branco to Ottersberg | 1,206.59 mi (1,941.82 km) |
| Castelo Branco to Ottobrunn | 1,106.40 mi (1,780.59 km) |
| Castelo Branco to Ottweiler | 974.70 mi (1,568.62 km) |
| Castelo Branco to Overath | 1,048.56 mi (1,687.49 km) |
| Castelo Branco to Oyten | 1,200.74 mi (1,932.41 km) |
| Castelo Branco to Paderborn | 1,130.75 mi (1,819.77 km) |
| Castelo Branco to Papenburg | 1,153.33 mi (1,856.11 km) |
| Castelo Branco to Parchim | 1,305.12 mi (2,100.39 km) |
| Castelo Branco to Pasewalk | 1,380.31 mi (2,221.39 km) |
| Castelo Branco to Passau | 1,196.15 mi (1,925.01 km) |
| Castelo Branco to Pattensen | 1,188.11 mi (1,912.08 km) |
| Castelo Branco to Pegnitz | 1,153.78 mi (1,856.83 km) |
| Castelo Branco to Peine | 1,205.75 mi (1,940.47 km) |
