I stand by what lance strongarm says.
Read it again. There was no mistake. 2.567 km IS 1.6 miles.
2.567 km = 1.5950599 miles.
1.5950599 miles is roundable to 1.6 miles.
Do you dispute either of these facts?
Can you present a reason why anyone other than a quantity surveyor would require a more precise conversion of 2.567 km than 1.6 miles?
That’s not the same thing. No one is proposing that.
If the existing system was 135.7 pennies per dollar, etc., and everyone was already familiar and proficient with that system, and you propose 100 pennies per dollar, etc., you would still have the same issue.
“My car gets 40 rods to the hogshead and that’s the way I likes it!”
and yet neither you nor anyone on your “side” have demonstrated why I should care. as I already said, real life is not a Professor Layton game. I’m not going to go into a shop and have the shopkeeper make me solve a story problem before he’ll sell me anything. If I need to know something like this, I know the conversion factor(s.)
The better part comes from the overwhelming simplicity of the metric system.
Related to the first quote, we are throwing away millions of dollars every year we continue to use the standard system. It takes ages to do calculations with the standard system compared to the metric. There are plenty of machine shops who have effectively converted to metric simply by converting every single measurement into thousandths of an inch so they can avoid the insanity of a system with no basis in logic what so ever.
basically the reason is because the human race is lazy and hates change in general.
Maybe if you’re still living in the 20th century and doing all your math by hand. I see no reason why any competently-programmed app wouldn’t be able to do calculations in American units exactly as fast as in metric.
Why is that “better”? Because people are so stupid they can’t handle numbers that aren’t 10? Seems to me that the metric advocates are the ones being lazy here.
It is called “efficiency” not “laziness”.
Y’all keep asserting that, but you haven’t demonstrated it. Nobody is disputing that it’s easier to move between “sub” units in metric, we’re asking you (repeatedly) to show how this is something the average person needs to do on anything approaching a regular basis. or at least enough to make a wholesale switch seem worth the cost and bother.
cite?
Cite?
ah yes, the “Everybody but me is lazy.”
I never ceased to be amazed at what inane crap people will get snobby about.
Please demonstrate this for me. While you are pulling your phone out of your pocket I will be already done with the calculation. Any idiot can slide a decimal point back and forth with a bit of training, the fact that you need a calculator at all is a perfect example of why this system is insane.
No. His statement is actually correct…for extremely large values of 16.
Wait, what? A top quark is over 70 times as massive as an up quark but is a hundredth the size? Do you have that backwards? Or is it drawn out like some kind of string?
How many micrometers in 1.56483 yottameters?
If it takes you less time to answer that question than it took you to read it, then your claim is refuted.
I’m not sure “width of quark” is even meaningful, and will let a physicist answer. I pulled most of those widths off of a wonderful webpage showing a wide range of distances.
1564820000000000000000000000000, what do I get? 
(1.56483 Ym is about 165.4 million light years, I did you a calculator for that conversion.)
We use SI and “English” units in an awkward and expensive mix in technical work everywhere. I’m doing a finite element thermal analysis right now, for example. All the drawings and documents related to the work are in inches and pounds. But there is no way in hell I’d ever do the heat transfer boundary conditions and the diffusion equations in anything but SI, because it would be hopelessly complicated. So, an entire section of my program is devoted to nothing but tracking and documenting all the physical parameters that are tracked in parallel in both unit systems.
You may think this doesn’t matter to you. The problem is, my company passes along all this extra expense to the consumer. Of course. We have no choice. In effect we also pass along all the risk of additional errors creeping in, and the cost of lost opportunities, and all sorts of other ugly details.
And this happens with EVERY PRODUCT MADE IN THE UNITED STATES!
I’ve said this in a few of the other threads too. I am resigned to this mess outliving me. I am resigned to the fact that we have to have a whole set of drawers for SI parts, and another set for English parts, and a third set of drawers for all the adapters that connect between them. I am resigned to it all, but that doesn’t mean we’re not still spending extra for this pointless luxury.
someone forgot to tell the auto industry; I’ve been working in SI units since I started my career almost 15 years ago.
Also, most everybody uses money.
You know what nobody cares about? How many 10x10x10cm cubes their monthly water usage would fit into, or how many of those cubes they could lay end to end down a 10km road. The ability to make those conversions by moving a decimal point is irrelevant because real life isn’t a story problem in a math textbook.
I think there’s been some really good examples of places where older systems of measurement make things needlessly complex with conversion factors in various technical fields. I think any of those fields that still do mixed work between two systems should move to one system (it would seem like SI would be the system to go with), but I don’t think most people who are of a technical bent understand how even people in well-paying, white collar jobs outside of technical fields are so uninvolved in ever doing that kind of conversion ever in their lives. That’s why it seems weird to me that anyone cares how people like us judge distance or volume or weight, it shouldn’t affect what the people who care about this stuff do.