Port-to-port sea distance
Ras Tanura to Ulsan distance
The sea distance from Ras Tanura (Saudi Arabia) to Ulsan (South Korea) is about 6,290 nautical miles (11,648 km), via the Strait of Hormuz and Malacca Strait. At 12 knots that is about 21 days 20 hours at sea.
Distance
6,290 nm
11,648 km
Sea days @ 12 kn
21.8
21 days 20 hours
ECA miles
0 nm
No ECA on route
Canals & straits
2
Strait of Hormuz · Malacca Strait
Sea days by speed
| Speed | One way | Round voyage |
|---|---|---|
| 10 knots | 26.2 days | 52.4 days |
| 11 knots | 23.8 days | 47.6 days |
| 12 knots | 21.8 days | 43.7 days |
| 13 knots | 20.2 days | 40.3 days |
| 14 knots | 18.7 days | 37.4 days |
| 15 knots | 17.5 days | 34.9 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
Avoiding the Malacca Strait (via Sunda or Lombok)
6,891 nm+601 nm
23.9 days at 12 kn · Strait of Hormuz · Sunda Strait
See it on the map- Very deep-draft ships sometimes avoid the Malacca and Singapore straits and go through the Lombok or Sunda strait instead, which adds 601 nm (about 2.1 days at 12 knots).
Voyage estimates by ship size
About this trade
Arabian Gulf → Far East crude. Arabian Gulf crude to China, Korea, Japan and Taiwan is the benchmark VLCC trade and the single biggest source of long-haul tanker demand.
- Typical ship sizes
- VLCC, Suezmax
- Related benchmark routes
- TD3C (MEG–China VLCC)
Questions
How far is Ras Tanura from Ulsan by sea?
The sea distance from Ras Tanura to Ulsan is about 6,290 nautical miles (11,648 km), via the Strait of Hormuz and Malacca Strait.
How long does a tanker take to sail from Ras Tanura to Ulsan?
About 21 days 20 hours at 12 knots, or 18.7 days at 14 knots. That is steaming time only; add time for port calls, canal transits and weather.
Which canals and straits does the Ras Tanura–Ulsan route pass?
The shortest route passes the Strait of Hormuz 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?
None. The whole route is outside Emission Control Areas, so the 0.50% global sulphur cap applies throughout.
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.
More voyages from Ras Tanura
- Ras Tanura to Karachi953 nm
- Ras Tanura to Sikka1,127 nm
- Ras Tanura to Vadinar1,127 nm
- Ras Tanura to New Mangalore1,762 nm
- Ras Tanura to Kochi1,805 nm
- Ras Tanura to Paradip3,070 nm
- Ras Tanura to Chittagong3,310 nm
- Ras Tanura to Pengerang3,739 nm
- Ras Tanura to Singapore3,739 nm
- Ras Tanura to Aliaga3,755 nm
- Ras Tanura to Augusta4,090 nm
- Ras Tanura to Cilacap4,222 nm
More voyages to Ulsan
- Burnaby to Ulsan5,014 nm
- Vancouver to Ulsan5,014 nm
- Jamnagar to Ulsan5,292 nm
- Sikka to Ulsan5,292 nm
- Mina Al Fahal to Ulsan5,790 nm
- Fujairah to Ulsan5,895 nm
- Zirku Island to Ulsan6,148 nm
- Halul Island to Ulsan6,165 nm
- Das Island to Ulsan6,241 nm
- Jebel Dhanna to Ulsan6,241 nm
- Ruwais to Ulsan6,241 nm
- Sitra to Ulsan6,283 nm