| Potomac to Richmond (California) | 2,417.44 mi (3,890.49 km) |
| Potomac to Richmond (Indiana) | 414.50 mi (667.08 km) |
| Potomac to Richmond (Kentucky) | 394.48 mi (634.85 km) |
| Potomac to Richmond (Texas) | 1,240.16 mi (1,995.84 km) |
| Potomac to Richmond (Virginia) | 103.70 mi (166.90 km) |
| Potomac to Richmond Heights (Florida) | 942.68 mi (1,517.09 km) |
| Potomac to Richmond Heights (Ohio) | 287.14 mi (462.10 km) |
| Potomac to Richmond Hill (Georgia) | 543.20 mi (874.19 km) |
| Potomac to Richmond West (Florida) | 944.98 mi (1,520.80 km) |
| Potomac to Richton Park (Illinois) | 581.17 mi (935.31 km) |
| Potomac to Ridge (New York) | 263.14 mi (423.48 km) |
| Potomac to Ridgecrest (California) | 2,217.49 mi (3,568.71 km) |
| Potomac to Ridgefield (New Jersey) | 210.10 mi (338.12 km) |
| Potomac to Ridgefield (Washington) | 2,335.84 mi (3,759.17 km) |
| Potomac to Ridgefield Park (New Jersey) | 210.80 mi (339.25 km) |
