Rather than reiterating a lot of what I've said previously, I'm reposting my greatest hits from previous discussions on this topic: hope that is okay. § The U

Rather than reiterating a lot of what I've said previously, I'm reposting my greatest hits from previous discussions on this topic: hope that is okay. § The US rarely uses metric in it's popular culture. Weather reports are in Fahrenheit, movies almost always use miles and pounds. By any measure of cultural output that you export that I've seen (and Australia is a huge consumer of your popular culture) you do not use metric. § In Australia we started metrication in 1971[1] with 1974 being the effective tipping point when all road signs were changed. Being born in the early 70's, I have a rough understanding of imperial measurement units. I can roughly understand if something is a few inches or a few feet, but can never remember how many inches in a foot, and have no concept of relation between feet and miles. Miles I understand as a bit over 1.5kms. The only length measurements we tend to still give in imperial is a person's height in feet and inches. The concept that over six foot is tall, and under five is getting to be short (for men at least) has such utility that it's stuck. Official documents will use metric though, usually centimetres. Weight is similar. Kilograms rule, except when talking about the weight of newborns which will still often be given in pounds and ounces informally. But give me anything else in pounds and I have no idea (very frustrating when that happens in movies.) Similarly Celsius rules. I know 100°F is a hot day, but wont boil an egg, and 0°F is colder than a mother-in-law's kiss, but those are rough approximations, and anything between those two I have to convert. Gallons is a foreign language. However all the colloquialisms such as giving an inch and taking a mile are still common. And yet somehow despite all this, the world continued to spin. [1] https://en.wikipedia.org/wiki/Metrication_in_Australia https://en.wikipedia.org/wiki/Metrication_in_Australia § Just an interesting aside, measurements in construction are almost always given in either metres or millimetres, never centimetres (at least in Australia.) So that would be 914.4mm and 1219.2mm respectively (or 1.2192m I guess). The wisdom of this was explained to me by my builder father that metres and millimetres are orders of magnitude far enough apart that you can usually figure out which is which without too much difficulty in a specification even if they are not annotated properly. Centimetres fall close enough to in between that it can be confusing. Plus only using two standard units of measure (one for small stuff, another for large) is less potential confusion then using three. § Now if we could only stop anybody using m/d/y date formats...