| Mason City to Roermond | 4,326.01 mi (6,962.04 km) |
| Mason City to Roosendaal | 4,258.71 mi (6,853.73 km) |
| Mason City to Rosmalen | 4,283.67 mi (6,893.90 km) |
| Mason City to Rotterdam | 4,245.40 mi (6,832.31 km) |
| Mason City to Rozenburg | 4,237.00 mi (6,818.79 km) |
| Mason City to Rucphen | 4,263.42 mi (6,861.31 km) |
| Mason City to s-Gravendeel | 4,254.74 mi (6,847.34 km) |
| Mason City to s-Gravenzande | 4,230.44 mi (6,808.24 km) |
| Mason City to s-Heerenberg | 4,307.88 mi (6,932.86 km) |
| Mason City to s-Hertogenbosch | 4,282.66 mi (6,892.28 km) |
| Mason City to Sassenheim | 4,234.08 mi (6,814.09 km) |
| Mason City to Schaesberg | 4,339.33 mi (6,983.47 km) |
| Mason City to Schagen | 4,221.93 mi (6,794.53 km) |
| Mason City to Scherpenzeel | 4,272.57 mi (6,876.03 km) |
| Mason City to Scheveningen | 4,229.96 mi (6,807.46 km) |
