In most countries all over the world, the people use the same metric system.
For example, when you want to buy a gallon of water, you buy it by saying the liter.
Or, when you are measuring something, you use inch rather than centimeter.
Or maybe, when you are on the road, you see miles rather than kilometers.
BUT, do you know that Indonesian people use a different metric system?
When they are measuring something, they use centimeters rather than inches, so most of Indonesian people are confused when they buy a TV because TV use inches.
Indonesian people don’t drink tap water (You can see why in this post). So, they drink from a gallon of water. They don’t say they want to buy 10 liters of water, they just say a gallon or 2 gallons of water instead.
When a mother goes to the market and want to buy groceries, she doesn’t use pounds or ounces, but grams and kilograms.
When you ask for direction to somewhere, they don’t answer with feet but with meters. Moreover, many Indonesian people seem to not really understand how to use this metric system.
Most of them always mistake 1 ounce for 1 kilograms, which actually 1 ounce is 0,1 kilograms.
So, be careful with this metric system when you are doing business with the Indonesian people.
(See this video about buying groceries at the market)
(Credits go respectfully to the rightful owner)