| Pia to Ratzeburg | 837.16 mi (1,347.29 km) |
| Pia to Raubling | 565.81 mi (910.58 km) |
| Pia to Rauenberg | 528.93 mi (851.23 km) |
| Pia to Raunheim | 566.99 mi (912.49 km) |
| Pia to Ravensburg | 476.15 mi (766.28 km) |
| Pia to Recke | 701.27 mi (1,128.58 km) |
| Pia to Recklinghausen | 642.19 mi (1,033.51 km) |
| Pia to Regen | 651.92 mi (1,049.17 km) |
| Pia to Regensburg | 617.25 mi (993.37 km) |
| Pia to Regenstauf | 623.66 mi (1,003.68 km) |
| Pia to Rehau | 674.32 mi (1,085.22 km) |
| Pia to Rehburg-Loccum | 731.13 mi (1,176.64 km) |
| Pia to Rehlingen-Siersburg | 491.69 mi (791.31 km) |
| Pia to Reichelsheim | 558.13 mi (898.22 km) |
| Pia to Reichenbach/Vogtland | 701.36 mi (1,128.72 km) |
