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Distance from Houston to Tehran

Straight line

11,972 km
7,439 mi · 6,464 NM

By road

6,572 km
4,083 mi

Travel time

70 h 52 min
flight ≈ 15 h 28 min

Direction

NNE 28°
initial bearing

Open in the calculator (stops, directions, fuel cost) → Tehran → Houston

How far is Houston from Tehran?

Houston (United States) and Tehran (Iran) are very far apart: 11,972 km in a straight line, that is 7,439 miles or 6,464 nautical miles. The distance is measured over the Earth's surface (WGS84 ellipsoid) along the shortest possible path.

By road, Houston to Tehran is 6,572 km (4,083 miles), about 70 h 52 min by car on the fastest route, without traffic or stops. The road follows the straight line closely.

From Houston, Tehran lies to the north-east (initial bearing 28°). The route crosses from United States into Iran. The halfway point is at 65.8927°, -28.3405°.

A direct flight would take about 15 h 28 min (800 km/h cruise plus take-off and landing). The road distance and driving time are calculated on the map from OpenStreetMap roads.

Frequently asked questions

How far is Houston from Tehran?

By road it is 6,572 km (4,083 miles) from Houston to Tehran; in a straight line it is 11,972 km (7,439 miles).

How long is the drive from Houston to Tehran?

About 70 h 52 min on the fastest route (6,572 km), without traffic or stops.

In which direction is Tehran from Houston?

Tehran is to the north-east of Houston, at an initial bearing of 28°.

How long is the flight from Houston to Tehran?

A direct flight would take about 15 h 28 min at an average cruising speed of 800 km/h.

How is the distance calculated?

The straight-line distance is computed on the WGS84 ellipsoid with the Vincenty formula, accurate to the metre. The road distance comes from OpenStreetMap roads.