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SEA DISTANCE · FOR OFFICERS, MASTERS AND CHARTERERS

Colombo to Singapore by sea

The sea distance from Colombo to Singapore is 1,596 nautical miles, about 4.8 days at 14 knots. Without the Malacca Strait it is 2,370 nm via the Sunda Strait, 774 nm more. The straight line across the globe is only 1,477 nm, but ships cannot sail over land.

1,596 nmby sea · 2,957 km
2,370 nmvia the Sunda Strait · +774 nm
4.8 daysat 14 knots, sea time
ColomboSingapore
The route NaviBoss plans, pilot station to pilot station; dashed: via the Sunda Strait (Malacca Strait avoided). A planning sketch, not a chart.

Days at sea

Time under way only: add port, canal and anchorage time to plan the ETA.

SpeedDays at seaVia the Sunda Strait
10 knots6.79.9
12 knots5.58.2
14 knots4.87.1
16 knots4.26.2
20 knots3.34.9

Canals and straits on the way

In the order the ship meets them: Malacca Strait → Singapore Strait.

Zones on the route

Miles of this voyage inside each area, measured on the planned route.

AreaTypeMiles inside
Singapore & Malacca StraitsPiracy hotspot372 nm

Emission Control Areas: the ECA guide. Piracy and war-risk areas: the piracy map.

Questions about Colombo to Singapore

How far is Colombo from Singapore by sea?

1,596 nautical miles (2,957 km), pilot station to pilot station, on real shipping lanes. The straight line across the globe is 1,477 nm, but a ship cannot sail over land, so the sea route is 8% longer.

How many days does a ship take from Colombo to Singapore?

About 5.5 days at 12 knots, 4.8 days at 14 knots or 3.3 days at 20 knots. That is time at sea only, with no port, canal or anchorage waiting.

How much longer is Colombo to Singapore without the Malacca Strait?

2,370 nm via the Sunda Strait, 774 nm more: about 2.3 extra days at 14 knots.

Which canals and straits are on the route from Colombo to Singapore?

In order: Malacca Strait and Singapore Strait.

Does the route from Colombo to Singapore pass through piracy or war-risk areas?

Yes: 372 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 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 Colombo (Colombo Boarding Ground A) to the one at Singapore (Gusong Boarding Ground (PGBG)), 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, Singapore to Colombo, is the same distance.

More sea distances

Plan it with your own ship

Open the planner, pick Colombo and Singapore, 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.