| Potomac to Cesky Tesin | 4,460.86 mi (7,179.06 km) |
| Potomac to Cheb | 4,206.67 mi (6,769.98 km) |
| Potomac to Chocen | 4,359.61 mi (7,016.11 km) |
| Potomac to Chodov | 4,216.23 mi (6,785.36 km) |
| Potomac to Chomutov | 4,235.53 mi (6,816.42 km) |
| Potomac to Chotebor | 4,347.72 mi (6,996.97 km) |
| Potomac to Chrudim | 4,344.78 mi (6,992.26 km) |
| Potomac to Decin | 4,255.67 mi (6,848.84 km) |
| Potomac to Dobris | 4,286.96 mi (6,899.19 km) |
| Potomac to Domazlice | 4,249.10 mi (6,838.27 km) |
| Potomac to Duchcov | 4,243.75 mi (6,829.66 km) |
| Potomac to Dvur Kralove nad Labem | 4,329.16 mi (6,967.11 km) |
| Potomac to Frenstat pod Radhostem | 4,451.99 mi (7,164.79 km) |
| Potomac to Frydek-Mistek | 4,452.48 mi (7,165.57 km) |
| Potomac to Frydlant nad Ostravici | 4,456.13 mi (7,171.45 km) |
