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Distance from Holboca to Istanbul

Straight line

689 km
428 mi · 372 NM

By road

…
calculating

Travel time

…
flight ≈ 1 h 22 min

Direction

S 171°
initial bearing

Open in the calculator (stops, directions, fuel cost) → Istanbul → Holboca

How far is Holboca from Istanbul?

Holboca (Romania) and Istanbul (Türkiye) are quite far apart: 689 km in a straight line, that is 428 miles or 372 nautical miles. The distance is measured over the Earth's surface (WGS84 ellipsoid) along the shortest possible path.

From Holboca, Istanbul lies to the south (initial bearing 171°). The route crosses from Romania into Türkiye. The halfway point is at 44.0836°, 28.3573°.

A direct flight would take about 1 h 22 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 Holboca from Istanbul?

The straight-line distance between Holboca and Istanbul is 689 km (428 miles). The road distance is longer and is calculated on the map.

In which direction is Istanbul from Holboca?

Istanbul is to the south of Holboca, at an initial bearing of 171°.

How long is the flight from Holboca to Istanbul?

A direct flight would take about 1 h 22 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.