Distance from Perth to National Harbor
The distance between Perth, Canada and National Harbor, United States is 682 km (424 miles) in a straight line. If a road route exists, expect roughly 853 km (530 miles) by car — around 10 h 40 min of driving.
| Measure | Value |
|---|---|
| Straight-line distance | 682 km / 424 mi |
| Road distance (estimate) | ≈ 853 km / 530 mi |
| Driving time (estimate) | ≈ 10 h 40 min |
| Flight time (estimate) | ≈ 1 h 18 min |
Road distance and travel times are estimates based on the straight-line distance (road factor 1.25, average speed 80 km/h) — actual routes vary.
| Place | Latitude | Longitude |
|---|---|---|
| Perth, Canada | 44.898795 | -76.248566 |
| National Harbor, United States | 38.790984 | -77.004259 |
Frequently asked questions
How far is National Harbor from Perth?
The straight-line (air) distance from Perth, Canada to National Harbor, United States is 682 km (424 miles). By road it is roughly 853 km (530 miles), depending on the route.
How long does it take to drive from Perth to National Harbor?
Approximately 10 h 40 min, assuming an 80 km/h average over an estimated road distance of 853 km. Actual time depends on the route, traffic and border crossings.
How long is the flight from Perth to National Harbor?
A direct flight covers 682 km in about 1 h 18 min at typical cruise speed, plus airport time. Not all city pairs have direct flights.
How do I calculate distances for a whole list of locations?
Upload a CSV or Excel spreadsheet to the batch distance calculator — it computes the distance for every origin–destination row at once. The first records are free to try.
Related distances
Distance from National Harbor to Perth (reverse route)
GPS coordinates of Perth GPS coordinates of National Harbor