I've no idea. There are no burgers in the towns I go to for shopping.
I'm at a lodge right now and their beef burger is about 4.25 U$, but comes with chips.
It will be a lot cheaper at burger joints.
Yorky I think those prices are quite high for Thai standards?
I remember when you could buy a burger, coca cola and fries for 50 cents at McDonald.MacDonalds is quite cheap here ranging from:
View attachment 108887
to:
View attachment 108888
£1 = $1.27
The prices you show seem very expensive for Thailand.