Distance from Tehran to Istanbul
Straight line
By road
Travel time
Direction
Open in the calculator (stops, directions, fuel cost) → Istanbul → Tehran
How far is Tehran from Istanbul?
Tehran (Iran) and Istanbul (Türkiye) are quite far apart: 2,044 km in a straight line, that is 1,270 miles or 1,104 nautical miles. The distance is measured over the Earth's surface (WGS84 ellipsoid) along the shortest possible path.
By road, Tehran to Istanbul is 2,429 km (1,509 miles), about 28 h 23 min by car on the fastest route, without traffic or stops. The road is 19% longer than the straight line.
From Tehran, Istanbul lies to the north-west (initial bearing 294°). The route crosses from Iran into Türkiye. The halfway point is at 38.8941°, 40.6040°.
A direct flight would take about 3 h 3 min (800 km/h cruise plus take-off and landing). The road distance and driving time are calculated on the map from OpenStreetMap roads.
Other distances from Tehran
- Tehran – Karaj 42 km
- Tehran – Isfahan 339 km
- Tehran – Tabriz 528 km
- Tehran – Baku 538 km
- Tehran – Basrah 669 km
- Tehran – Shiraz 684 km
- Tehran – Baghdad 694 km
- Tehran – Mashhad 736 km
- Tehran – Mosul 750 km
Other distances from Istanbul
- Istanbul – Zeytinburnu 4 km
- Istanbul – Üsküdar 5 km
- Istanbul – Şişli 6 km
- Istanbul – Esenler 7 km
- Istanbul – Bahçelievler 8 km
- Istanbul – Bağcılar 8 km
- Istanbul – Sultangazi 12 km
- Istanbul – Ataşehir 14 km
- Istanbul – Umraniye 15 km
Frequently asked questions
How far is Tehran from Istanbul?
By road it is 2,429 km (1,509 miles) from Tehran to Istanbul; in a straight line it is 2,044 km (1,270 miles).
How long is the drive from Tehran to Istanbul?
About 28 h 23 min on the fastest route (2,429 km), without traffic or stops.
In which direction is Istanbul from Tehran?
Istanbul is to the north-west of Tehran, at an initial bearing of 294°.
How long is the flight from Tehran to Istanbul?
A direct flight would take about 3 h 3 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.