| Groningen to Robertsville (New Jersey) | 3,715.61 mi (5,979.70 km) |
| Groningen to Robinson (Texas) | 5,024.60 mi (8,086.31 km) |
| Groningen to Robstown (Texas) | 5,245.90 mi (8,442.46 km) |
| Groningen to Rochester (Michigan) | 3,934.66 mi (6,332.23 km) |
| Groningen to Rochester (Minnesota) | 4,196.54 mi (6,753.68 km) |
| Groningen to Rochester (New Hampshire) | 3,452.27 mi (5,555.89 km) |
| Groningen to Rochester (New York) | 3,709.41 mi (5,969.73 km) |
| Groningen to Rochester Hills (Michigan) | 3,937.06 mi (6,336.08 km) |
| Groningen to Rock Hill (South Carolina) | 4,239.39 mi (6,822.63 km) |
| Groningen to Rock Island (Illinois) | 4,261.02 mi (6,857.46 km) |
| Groningen to Rock Springs (Wyoming) | 4,858.19 mi (7,818.51 km) |
| Groningen to Rockford (Illinois) | 4,167.87 mi (6,707.54 km) |
| Groningen to Rockledge (Florida) | 4,568.74 mi (7,352.67 km) |
| Groningen to Rocklin (California) | 5,357.15 mi (8,621.50 km) |
| Groningen to Rockport (Texas) | 5,211.04 mi (8,386.36 km) |
