| North Potomac to Trim | 3,356.44 mi (5,401.67 km) |
| North Potomac to Tuam | 3,274.33 mi (5,269.52 km) |
| North Potomac to Tullamore | 3,332.34 mi (5,362.88 km) |
| North Potomac to Waterford | 3,363.24 mi (5,412.61 km) |
| North Potomac to Wexford | 3,389.52 mi (5,454.91 km) |
| North Potomac to Wicklow | 3,396.11 mi (5,465.51 km) |
| North Potomac to Abano Terme | 4,335.20 mi (6,976.83 km) |
| North Potomac to Abbiategrasso | 4,211.27 mi (6,777.38 km) |
| North Potomac to Acate | 4,755.88 mi (7,653.85 km) |
| North Potomac to Acerra | 4,602.69 mi (7,407.32 km) |
| North Potomac to Aci Castello | 4,765.62 mi (7,669.53 km) |
| North Potomac to Aci Catena | 4,763.35 mi (7,665.86 km) |
| North Potomac to Aci Sant'Antonio | 4,762.59 mi (7,664.65 km) |
| North Potomac to Acireale | 4,764.22 mi (7,667.28 km) |
| North Potomac to Acquaviva delle Fonti | 4,713.40 mi (7,585.49 km) |
