| Ianca to Ratingen | 1,036.07 mi (1,667.39 km) |
| Ianca to Ratzeburg | 952.71 mi (1,533.24 km) |
| Ianca to Raubling | 752.75 mi (1,211.43 km) |
| Ianca to Rauenberg | 923.45 mi (1,486.15 km) |
| Ianca to Raunheim | 945.51 mi (1,521.65 km) |
| Ianca to Ravensburg | 867.60 mi (1,396.26 km) |
| Ianca to Recke | 1,024.69 mi (1,649.08 km) |
| Ianca to Recklinghausen | 1,028.95 mi (1,655.93 km) |
| Ianca to Regen | 723.79 mi (1,164.83 km) |
| Ianca to Regensburg | 770.62 mi (1,240.20 km) |
| Ianca to Regenstauf | 770.55 mi (1,240.07 km) |
| Ianca to Rehau | 799.02 mi (1,285.89 km) |
| Ianca to Rehburg-Loccum | 968.97 mi (1,559.40 km) |
| Ianca to Rehlingen-Siersburg | 1,014.50 mi (1,632.67 km) |
| Ianca to Reichelsheim | 923.84 mi (1,486.78 km) |
