| Cedar Rapids to Ratingen | 4,357.61 mi (7,012.90 km) |
| Cedar Rapids to Ratzeburg | 4,396.34 mi (7,075.22 km) |
| Cedar Rapids to Raubling | 4,691.29 mi (7,549.90 km) |
| Cedar Rapids to Rauenberg | 4,505.63 mi (7,251.12 km) |
| Cedar Rapids to Raunheim | 4,465.97 mi (7,187.28 km) |
| Cedar Rapids to Ravensburg | 4,600.40 mi (7,403.63 km) |
| Cedar Rapids to Recke | 4,346.35 mi (6,994.77 km) |
| Cedar Rapids to Recklinghausen | 4,357.54 mi (7,012.78 km) |
| Cedar Rapids to Regen | 4,676.89 mi (7,526.72 km) |
| Cedar Rapids to Regensburg | 4,637.58 mi (7,463.46 km) |
| Cedar Rapids to Regenstauf | 4,634.59 mi (7,458.65 km) |
| Cedar Rapids to Rehau | 4,582.59 mi (7,374.96 km) |
| Cedar Rapids to Rehburg-Loccum | 4,394.58 mi (7,072.39 km) |
| Cedar Rapids to Rehlingen-Siersburg | 4,427.53 mi (7,125.42 km) |
| Cedar Rapids to Reichelsheim | 4,492.27 mi (7,229.61 km) |
