| Knightdale to Ratingen | 4,156.72 mi (6,689.59 km) |
| Knightdale to Ratzeburg | 4,247.04 mi (6,834.95 km) |
| Knightdale to Raubling | 4,469.96 mi (7,193.70 km) |
| Knightdale to Rauenberg | 4,285.81 mi (6,897.34 km) |
| Knightdale to Raunheim | 4,255.00 mi (6,847.75 km) |
| Knightdale to Ravensburg | 4,365.60 mi (7,025.75 km) |
| Knightdale to Recke | 4,164.51 mi (6,702.12 km) |
| Knightdale to Recklinghausen | 4,162.09 mi (6,698.24 km) |
| Knightdale to Regen | 4,476.24 mi (7,203.82 km) |
| Knightdale to Regensburg | 4,431.94 mi (7,132.52 km) |
| Knightdale to Regenstauf | 4,430.58 mi (7,130.33 km) |
| Knightdale to Rehau | 4,392.74 mi (7,069.43 km) |
| Knightdale to Rehburg-Loccum | 4,220.74 mi (6,792.62 km) |
| Knightdale to Rehlingen-Siersburg | 4,199.03 mi (6,757.69 km) |
| Knightdale to Reichelsheim | 4,279.14 mi (6,886.61 km) |
