That's messed up. I knew the States was way behind on it but I didn't realize there was only 3 in the whole world. Sad thing is that here in Canada it's almost a hybrid. Everyone knows their weight in pounds and height in feet but the temperature in Celcius.

Totally agree with you elocin re: Canada. The grocery and hardware stores have a weird (and annoying) mixture of both. Wish Canadians would just fully convert already.

This has to be costing money... it cost us the loss of at least one space probe that cost millions of dollars. It was one of the Mars probes. I don't, off the top of my head, remember which. That example could just as well be chalked up to human error though. Even though the engineer forgot convert to metric when doing calculations, something that he would not have had to do if the US public were using the metric system, it still was a human mistake that caused the loss of the probe.

Didn't the US gear up for a conversion about 25 years ago?

The change in Australia started in the mid sixties and I'm now just about confident. A lot of those older than me have never taken to it.
Actually instead of asking for weight, you tend to buy by number eg 10 slices of ham instead of half a kilo, which means less wastage and less cost.

I hope you are not American Lilyrose770.Those 3 countries are actually all States of the mighty USofA (some sarcasm).Voidoid