| Kastamonu to Ridgeland (Mississippi) | 6,214.79 mi (10,001.74 km) |
| Kastamonu to Ridgewood (New Jersey) | 5,179.23 mi (8,335.17 km) |
| Kastamonu to Rifle (Colorado) | 6,346.85 mi (10,214.28 km) |
| Kastamonu to Rincon (Georgia) | 5,881.62 mi (9,465.55 km) |
| Kastamonu to Ringwood (New Jersey) | 5,179.69 mi (8,335.91 km) |
| Kastamonu to Río Grande (Puerto Rico) | 5,863.73 mi (9,436.76 km) |
| Kastamonu to Rio Grande City (Texas) | 6,859.74 mi (11,039.68 km) |
| Kastamonu to Rio Linda (California) | 6,689.05 mi (10,764.99 km) |
| Kastamonu to Rio Rancho (New Mexico) | 6,577.60 mi (10,585.62 km) |
| Kastamonu to Rio Rico (Arizona) | 6,923.94 mi (11,143.01 km) |
| Kastamonu to Ripon (California) | 6,745.61 mi (10,856.01 km) |
| Kastamonu to River Edge (New Jersey) | 5,178.94 mi (8,334.70 km) |
| Kastamonu to River Falls (Wisconsin) | 5,619.84 mi (9,044.26 km) |
| Kastamonu to River Forest (Illinois) | 5,627.33 mi (9,056.31 km) |
| Kastamonu to River Grove (Illinois) | 5,626.40 mi (9,054.82 km) |
