| Potomac to Kortenberg | 3,870.41 mi (6,228.82 km) |
| Potomac to Kortrijk | 3,820.32 mi (6,148.21 km) |
| Potomac to Kraainem | 3,867.88 mi (6,224.76 km) |
| Potomac to Kruibeke | 3,853.72 mi (6,201.96 km) |
| Potomac to Kuurne | 3,820.65 mi (6,148.74 km) |
| Potomac to La Bruyere | 3,891.22 mi (6,262.31 km) |
| Potomac to La Calamine | 3,934.44 mi (6,331.87 km) |
| Potomac to La Louviere | 3,866.99 mi (6,223.31 km) |
| Potomac to Laarne | 3,839.37 mi (6,178.86 km) |
| Potomac to Laeken | 3,863.37 mi (6,217.50 km) |
| Potomac to Lanaken | 3,915.18 mi (6,300.87 km) |
| Potomac to Landen | 3,895.92 mi (6,269.87 km) |
| Potomac to Lebbeke | 3,850.57 mi (6,196.90 km) |
| Potomac to Lede | 3,846.03 mi (6,189.58 km) |
| Potomac to Ledegem | 3,814.13 mi (6,138.25 km) |
