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Distance from Roman to Istanbul

Straight line

676 km
420 mi · 365 NM

By road

997 km
620 mi

Travel time

12 h 46 min
flight ≈ 1 h 21 min

Direction

SSE 165°
initial bearing

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

How far is Roman from Istanbul?

Roman (Romania) and Istanbul (Türkiye) are quite far apart: 676 km in a straight line, that is 420 miles or 365 nautical miles. The distance is measured over the Earth's surface (WGS84 ellipsoid) along the shortest possible path.

By road, Roman to Istanbul is 997 km (620 miles), about 12 h 46 min by car on the fastest route, without traffic or stops. The road is 47% longer than the straight line.

From Roman, Istanbul lies to the south (initial bearing 165°). The route crosses from Romania into Türkiye. The halfway point is at 43.9720°, 27.9884°.

A direct flight would take about 1 h 21 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 Roman from Istanbul?

By road it is 997 km (620 miles) from Roman to Istanbul; in a straight line it is 676 km (420 miles).

How long is the drive from Roman to Istanbul?

About 12 h 46 min on the fastest route (997 km), without traffic or stops.

In which direction is Istanbul from Roman?

Istanbul is to the south of Roman, at an initial bearing of 165°.

How long is the flight from Roman to Istanbul?

A direct flight would take about 1 h 21 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.