| Mason City to Rodgau | 4,476.77 mi (7,204.67 km) |
| Mason City to Roding | 4,638.53 mi (7,465.00 km) |
| Mason City to Rodinghausen | 4,369.00 mi (7,031.22 km) |
| Mason City to Roetgen | 4,355.97 mi (7,010.25 km) |
| Mason City to Rommerskirchen | 4,357.56 mi (7,012.82 km) |
| Mason City to Ronnenberg | 4,405.83 mi (7,090.50 km) |
| Mason City to Rosbach vor der Hohe | 4,458.43 mi (7,175.16 km) |
| Mason City to Rosdorf | 4,448.74 mi (7,159.55 km) |
| Mason City to Rosenheim | 4,685.69 mi (7,540.90 km) |
| Mason City to Rosrath | 4,380.31 mi (7,049.43 km) |
| Mason City to Rossdorf | 4,479.02 mi (7,208.29 km) |
| Mason City to Rosstal | 4,573.17 mi (7,359.81 km) |
| Mason City to Rostock | 4,411.72 mi (7,099.98 km) |
| Mason City to Rotenburg an der Fulda | 4,464.33 mi (7,184.64 km) |
| Mason City to Roth | 4,587.15 mi (7,382.31 km) |
