this post was submitted on 25 Sep 2023
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It's only arbitrarily easy since water has a density of 1 kg/l in metric, as it was designed to do so. If you happened to know the density of water is 62.2 lb/ft^3 then the equation is roughly 123*60 which is 360 lb. 372 if you can actually paid attention to what common core was trying to teach. If the material was anything other then water the math would be just as difficult to do in imperial or metric.
Metric is still far superior as the harmonized units make density in particular much easier to convert between. About the only thing imperial is better at is thread pitch of screws. I will also maintain that when describing human temperatures for weather Fahrenheit is a superior scale, but that's just more personal preference and experience then any rational basis.
That's also what we mean
That's one where I'd say it's almost entirely personal preference. Water freezing being at zero is handy because it's nice to know when there's ice/snow outside, but that's also something you could just learn to remember in Fahrenheit too. Doesn't really matter with that system. Kelvin and Celsius being bros is nice but it's extremely rare that I use that so eh.