| Potomac to Dormagen | 3,956.31 mi (6,367.07 km) |
| Potomac to Dornstadt | 4,159.33 mi (6,693.80 km) |
| Potomac to Dorsten | 3,946.95 mi (6,352.01 km) |
| Potomac to Dortmund | 3,970.68 mi (6,390.19 km) |
| Potomac to Dorverden | 4,002.39 mi (6,441.23 km) |
| Potomac to Dossenheim | 4,077.92 mi (6,562.77 km) |
| Potomac to Dreieich | 4,062.85 mi (6,538.52 km) |
| Potomac to Drensteinfurt | 3,973.77 mi (6,395.16 km) |
| Potomac to Dresden | 4,229.19 mi (6,806.22 km) |
| Potomac to Drochtersen | 3,984.58 mi (6,412.56 km) |
| Potomac to Drolshagen | 3,995.96 mi (6,430.87 km) |
| Potomac to Duderstadt | 4,080.25 mi (6,566.53 km) |
| Potomac to Duisburg | 3,945.07 mi (6,348.97 km) |
| Potomac to Dulmen | 3,954.69 mi (6,364.46 km) |
| Potomac to Duren | 3,951.16 mi (6,358.78 km) |
