SEA DISTANCE · FOR OFFICERS, MASTERS AND CHARTERERS
Ras Tanura to Ningbo by sea
The sea distance from Ras Tanura to Ningbo is 5,820 nautical miles, about 17 days at 14 knots. Without the Malacca Strait it is 6,434 nm via the Sunda Strait, 615 nm more. The straight line across the globe is only 3,726 nm, but ships cannot sail over land.
Days at sea
Time under way only: add port, canal and anchorage time to plan the ETA.
| Speed | Days at sea | Via the Sunda Strait |
|---|---|---|
| 10 knots | 24 | 27 |
| 12 knots | 20 | 22 |
| 14 knots | 17 | 19 |
| 16 knots | 15 | 17 |
| 20 knots | 12 | 13 |
Canals and straits on the way
In the order the ship meets them: Strait of Hormuz → Malacca Strait → Singapore Strait → Taiwan Strait.
Zones on the route
Miles of this voyage inside each area, measured on the planned route.
| Area | Type | Miles inside |
|---|---|---|
| China DECA (coastal waters) | Emission Control Area | 436 nm |
| Persian Gulf, Hormuz & Gulf of Oman (ITF/IBF WOA) | ITF/IBF warlike area | 635 nm |
| Gulf / Arabian Sea / S. Red Sea war-risk (Sep 2026) | JWC listed area | 1,043 nm |
| Singapore & Malacca Straits | Piracy hotspot | 516 nm |
| UKMTO Voluntary Reporting Area | Voluntary reporting area | 2,085 nm |
| Gulfs area (MARPOL Special Area) | MARPOL Special Area | 663 nm |
| Oman area, Arabian Sea (MARPOL Special Area) | MARPOL Special Area | 190 nm |
Emission Control Areas: the ECA guide. Piracy and war-risk areas: the piracy map.
Questions about Ras Tanura to Ningbo
How far is Ras Tanura from Ningbo by sea?
5,820 nautical miles (10,778 km), pilot station to pilot station, on real shipping lanes. The straight line across the globe is 3,726 nm, but a ship cannot sail over land, so the sea route is 56% longer.
How many days does a ship take from Ras Tanura to Ningbo?
About 20 days at 12 knots, 17 days at 14 knots or 12 days at 20 knots. That is time at sea only, with no port, canal or anchorage waiting.
How much longer is Ras Tanura to Ningbo without the Malacca Strait?
6,434 nm via the Sunda Strait, 615 nm more: about 1.8 extra days at 14 knots.
Which canals and straits are on the route from Ras Tanura to Ningbo?
In order: Strait of Hormuz, Malacca Strait, Singapore Strait and Taiwan Strait.
How many miles of the voyage are inside Emission Control Areas?
436 nm, in China DECA (coastal waters). Inside an ECA the fuel must carry no more than 0.10% sulphur, unless the ship uses an approved alternative such as a scrubber.
Does the route from Ras Tanura to Ningbo pass through piracy or war-risk areas?
Yes: 635 nm in the Persian Gulf, Hormuz & Gulf of Oman (ITF/IBF WOA) (ITF/IBF warlike area), 1,043 nm in the Gulf / Arabian Sea / S. Red Sea war-risk (Sep 2026) (JWC listed area) and 516 nm in the Singapore & Malacca Straits (Piracy hotspot). Check the latest UKMTO and MSCIO advisories and your company's instructions before the voyage.
Which NAVAREAs does the voyage pass through?
NAVAREA IX, NAVAREA VIII and NAVAREA XI. Keep the in-force navigational warnings of each.
How this distance is worked out
NaviBoss routes on a network of professional shipping lanes that keeps right through traffic separation schemes. The distance runs from the pilot boarding place at Ras Tanura (Ras Tanura) to the one at Ningbo (Ningbo boarding position 1), the same figure the planner gives for the two ports. Distances are great-circle nautical miles along that network. Seasonal Arctic routes are left out.
The same voyage the other way, Ningbo to Ras Tanura, is the same distance.
More sea distances
Plan it with your own ship
Open the planner, pick Ras Tanura and Ningbo, set your speed and departure: you get the ETA, every waypoint and the route file for your ECDIS. Free with an account.
Plan this voyage →About our guides
NaviBoss guides are written and checked by maritime industry experts, masters and deck officers. Each one is built from the same data the planner uses, dated, and rebuilt when that data changes. Spotted something wrong? Tell us on the feedback board.
A planning aid, not for navigation. Check official charts and publications, the latest notices and your company's instructions before you rely on any figure here.