| Groningen to Ridgeland (Mississippi) | 4,716.61 mi (7,590.65 km) |
| Groningen to Ridgewood (New Jersey) | 3,678.53 mi (5,920.02 km) |
| Groningen to Rifle (Colorado) | 4,931.00 mi (7,935.68 km) |
| Groningen to Rincon (Georgia) | 4,382.48 mi (7,052.91 km) |
| Groningen to Ringwood (New Jersey) | 3,678.96 mi (5,920.72 km) |
| Groningen to Río Grande (Puerto Rico) | 4,483.74 mi (7,215.88 km) |
| Groningen to Rio Grande City (Texas) | 5,366.55 mi (8,636.63 km) |
| Groningen to Rio Linda (California) | 5,369.43 mi (8,641.27 km) |
| Groningen to Rio Rancho (New Mexico) | 5,137.71 mi (8,268.35 km) |
| Groningen to Rio Rico (Arizona) | 5,492.95 mi (8,840.05 km) |
| Groningen to Ripon (California) | 5,418.49 mi (8,720.22 km) |
| Groningen to River Edge (New Jersey) | 3,678.26 mi (5,919.59 km) |
| Groningen to River Falls (Wisconsin) | 4,158.60 mi (6,692.62 km) |
| Groningen to River Forest (Illinois) | 4,142.25 mi (6,666.31 km) |
| Groningen to River Grove (Illinois) | 4,141.44 mi (6,665.01 km) |
