| Kalkar to Rheinberg | 18.73 mi (30.15 km) |
| Kalkar to Rheine | 61.39 mi (98.79 km) |
| Kalkar to Rheinfelden (Baden) | 296.33 mi (476.90 km) |
| Kalkar to Ribnitz-Damgarten | 309.72 mi (498.44 km) |
| Kalkar to Richterich | 65.04 mi (104.67 km) |
| Kalkar to Riedlingen | 285.07 mi (458.77 km) |
| Kalkar to Riegelsberg | 171.27 mi (275.63 km) |
| Kalkar to Rielasingen-Worblingen | 299.09 mi (481.34 km) |
| Kalkar to Riesa | 302.34 mi (486.56 km) |
| Kalkar to Rietberg | 91.63 mi (147.46 km) |
| Kalkar to Rinteln | 122.75 mi (197.55 km) |
| Kalkar to Ritterhude | 144.11 mi (231.92 km) |
| Kalkar to Rodenbach | 162.12 mi (260.90 km) |
| Kalkar to Rodental | 230.56 mi (371.06 km) |
| Kalkar to Rodgau | 164.04 mi (264.00 km) |
