| Willow Grove to Ratingen | 3,817.55 mi (6,143.75 km) |
| Willow Grove to Ratzeburg | 3,902.36 mi (6,280.25 km) |
| Willow Grove to Raubling | 4,134.46 mi (6,653.78 km) |
| Willow Grove to Rauenberg | 3,949.55 mi (6,356.19 km) |
| Willow Grove to Raunheim | 3,917.43 mi (6,304.50 km) |
| Willow Grove to Ravensburg | 4,031.76 mi (6,488.50 km) |
| Willow Grove to Recke | 3,823.06 mi (6,152.62 km) |
| Willow Grove to Recklinghausen | 3,822.26 mi (6,151.33 km) |
| Willow Grove to Regen | 4,137.95 mi (6,659.39 km) |
| Willow Grove to Regensburg | 4,094.18 mi (6,588.95 km) |
| Willow Grove to Regenstauf | 4,092.60 mi (6,586.41 km) |
| Willow Grove to Rehau | 4,052.86 mi (6,522.45 km) |
| Willow Grove to Rehburg-Loccum | 3,878.54 mi (6,241.90 km) |
| Willow Grove to Rehlingen-Siersburg | 3,863.74 mi (6,218.10 km) |
| Willow Grove to Reichelsheim | 3,941.94 mi (6,343.95 km) |
