Port-to-port sea distance
Sture to Ulsan distance
The sea distance from Sture (Norway) to Ulsan (South Korea) is about 11,438 nautical miles (21,184 km), via the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait. At 12 knots that is about 39 days 17 hours at sea.
Distance
11,438 nm
21,184 km
Sea days @ 12 kn
39.7
39 days 17 hours
ECA miles
2,943 nm
26% of the route
Canals & straits
5
Dover Strait · Strait of Gibraltar · Suez Canal · Bab-el-Mandeb · Malacca Strait
Sea days by speed
| Speed | One way | Round voyage |
|---|---|---|
| 10 knots | 47.7 days | 95.3 days |
| 11 knots | 43.3 days | 86.7 days |
| 12 knots | 39.7 days | 79.4 days |
| 13 knots | 36.7 days | 73.3 days |
| 14 knots | 34.0 days | 68.1 days |
| 15 knots | 31.8 days | 63.5 days |
Steaming time only, with no allowance for weather, canal waiting or port time. The round voyage assumes the ship ballasts back on the same route.
Routes compared
Shortest route
11,438 nm
39.7 days at 12 kn · Dover Strait · Strait of Gibraltar · Suez Canal · Bab-el-Mandeb · Malacca Strait · 2,943 nm in ECA
See it on the mapVia the Cape of Good Hope (avoiding Suez and the Red Sea)
13,282 nm+1,844 nm
46.1 days at 12 kn · Panama Canal · 1,383 nm in ECA
See it on the mapAvoiding the Malacca Strait (via Sunda or Lombok)
11,973 nm+534 nm
41.6 days at 12 kn · Dover Strait · Strait of Gibraltar · Suez Canal · Bab-el-Mandeb · Sunda Strait · 2,943 nm in ECA
See it on the mapVia the Cape (avoiding both Suez and Panama)
14,734 nm+3,296 nm
51.2 days at 12 kn · Dover Strait · Sunda Strait · 922 nm in ECA
See it on the map- Since early 2024 many owners have kept their ships out of the Red Sea. Routing via the Cape of Good Hope adds 1,844 nm (about 6.4 days at 12 knots).
- Very deep-draft ships sometimes avoid the Malacca and Singapore straits and go through the Lombok or Sunda strait instead, which adds 534 nm (about 1.9 days at 12 knots).
Voyage estimates by ship size
About this trade
North Sea crude. North Sea grades loaded at Sullom Voe, Hound Point, Mongstad and Sture, moved short-haul into Europe or arbitraged long-haul to Asia.
- Typical ship sizes
- Aframax, Suezmax
Questions
How far is Sture from Ulsan by sea?
The sea distance from Sture to Ulsan is about 11,438 nautical miles (21,184 km), via the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait.
How long does a tanker take to sail from Sture to Ulsan?
About 39 days 17 hours at 12 knots, or 34.0 days at 14 knots. That is steaming time only; add time for port calls, canal transits and weather.
Which canals and straits does the Sture–Ulsan route pass?
The shortest route passes the Dover Strait, Strait of Gibraltar, Suez Canal, Bab-el-Mandeb and Malacca Strait. Alternative routings are listed above for ships that cannot or will not use them.
How much of the voyage is inside an Emission Control Area?
About 2,943 nm, or 26% of the voyage, is inside an ECA, where ships must burn 0.10% sulphur fuel or use a scrubber.
Terms on this page
Distances are calculated by Vessbook on a modelled global shipping-lane network for a tanker at 12 m draft, from berth area to berth area.
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