| Duncan to Ratingen | 4,965.69 mi (7,991.51 km) |
| Duncan to Ratzeburg | 5,008.72 mi (8,060.76 km) |
| Duncan to Raubling | 5,297.92 mi (8,526.18 km) |
| Duncan to Rauenberg | 5,111.96 mi (8,226.91 km) |
| Duncan to Raunheim | 5,073.22 mi (8,164.56 km) |
| Duncan to Ravensburg | 5,205.10 mi (8,376.80 km) |
| Duncan to Recke | 4,956.25 mi (7,976.31 km) |
| Duncan to Recklinghausen | 4,966.18 mi (7,992.29 km) |
| Duncan to Regen | 5,285.74 mi (8,506.57 km) |
| Duncan to Regensburg | 5,245.83 mi (8,442.35 km) |
| Duncan to Regenstauf | 5,243.00 mi (8,437.80 km) |
| Duncan to Rehau | 5,192.27 mi (8,356.14 km) |
| Duncan to Rehburg-Loccum | 5,005.25 mi (8,055.18 km) |
| Duncan to Rehlingen-Siersburg | 5,032.56 mi (8,099.12 km) |
| Duncan to Reichelsheim | 5,099.35 mi (8,206.61 km) |
