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Distance from Houston to Sydney

Straight line

13,817 km
8,586 mi · 7,461 NM

By road

–
no road route

Travel time

–
flight ≈ 17 h 46 min

Direction

WSW 247°
initial bearing

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

How far is Houston from Sydney?

Houston (United States) and Sydney (Australia) are very far apart: 13,817 km in a straight line, that is 8,586 miles or 7,461 nautical miles. The distance is measured over the Earth's surface (WGS84 ellipsoid) along the shortest possible path.

There is no continuous road route between Houston and Sydney, so the straight-line distance and the flight are the useful figures.

From Houston, Sydney lies to the south-west (initial bearing 247°). The route crosses from United States into Australia. The halfway point is at -3.7337°, -150.1385°.

A direct flight would take about 17 h 46 min (800 km/h cruise plus take-off and landing).

Frequently asked questions

How far is Houston from Sydney?

The straight-line distance between Houston and Sydney is 13,817 km (8,586 miles). There is no continuous road route between them.

In which direction is Sydney from Houston?

Sydney is to the south-west of Houston, at an initial bearing of 247°.

How long is the flight from Houston to Sydney?

A direct flight would take about 17 h 46 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.