How Big is Koh Chang?

Just How Big is Koh Chang?

Modern life can be very easy can’t it? If you want a fact these days, any little nugget of information from the collected wisdom of humanity, all you have to do is to type a question into a little box on your web browser and bang – instant knowledge!

You get so used to this that it comes as a bit of surprise when no simple answer appears. This happened some time ago when I was asked by a friend how big Koh Chang was and whether it was bigger or smaller than Koh Samui and Phuket. I answered right away that it was Thailand’s second biggest island – larger than Samui and smaller only than Phuket. But then I realized that this was just a fact that I’d been told and decided I’d better check it up. The results of a little research revealed some quite large differences of opinion on the subject.

A Google search of “Koh Chang Area” came up with an Agoda ad on the top of the screen that informed me that Koh Chang has an area of 154.8 sq. km. But when I looked a bit deeper it turned out that that is just the area of Koh Chang’s Northern half. Who on earth wants to know the area of half an island?

And what about the battle of the islands? Nobody seems to dispute that Phuket is Thailand’s biggest island – it just is. But things are a little less clear on the big match-up between Koh Chang and Koh Samui for second place.
Wikipedia gives Koh Chang an area of 217 sq. km.  and Koh Samui comes in at 228.7 sq. km.

To be democratic I did a Google search of “Thailand’s second biggest island” and reckoned up what the top ten hits told me.
Guess what – a tie. Five sites went with Koh Chang and five said Samui was larger. The plot thickens.

By this stage I was more than a little confused, then my friend David of came up with a magic solution by recommending a really clever tool at
Here you can browse a map of the world, pick a place and map its area by dropping pins around it. I did this for Koh Chang and Koh Samui (yes, it takes time) and here are the results;

2nd Biggest Island in Thailand
Koh Samui – 233.3 sq. km.

3rd Biggest Island in Thailand
Koh Chang – 211.7 sq. km.

So there you have it. Samui is bigger. Koh Chang is Thailand’s third biggest island (unless anyone wants to suggest any more challengers).
But remember this, size isn’t everything. just come and take a look at Koh Chang and you’ll see what I mean.


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by Dave in Features and Archives, Koh Chang and Thailand, Koh Chang News

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