| Mercer Island to Ratingen | 4,970.47 mi (7,999.20 km) |
| Mercer Island to Ratzeburg | 4,918.53 mi (7,915.60 km) |
| Mercer Island to Raubling | 5,300.37 mi (8,530.12 km) |
| Mercer Island to Rauenberg | 5,132.83 mi (8,260.48 km) |
| Mercer Island to Raunheim | 5,082.96 mi (8,180.24 km) |
| Mercer Island to Ravensburg | 5,241.96 mi (8,436.13 km) |
| Mercer Island to Recke | 4,929.00 mi (7,932.45 km) |
| Mercer Island to Recklinghausen | 4,961.41 mi (7,984.61 km) |
| Mercer Island to Regen | 5,252.72 mi (8,453.44 km) |
| Mercer Island to Regensburg | 5,226.23 mi (8,410.80 km) |
| Mercer Island to Regenstauf | 5,220.84 mi (8,402.12 km) |
| Mercer Island to Rehau | 5,150.93 mi (8,289.63 km) |
| Mercer Island to Rehburg-Loccum | 4,958.14 mi (7,979.35 km) |
| Mercer Island to Rehlingen-Siersburg | 5,077.84 mi (8,171.99 km) |
| Mercer Island to Reichelsheim | 5,109.85 mi (8,223.51 km) |
