Show of Hands

Metric is easy. Everything breaks down into 10.

Imperial lacks logic imo. Why are there 12 inches to a foot but 3 feet to a yard?! Weight makes even less sense. I don't understand why some insist on keeping this nonsense when even engineers and architects here use metric.

I can ballpark a few things. Never really used metrics except in high school chemistry. When a conversion is needed now, a smart phone makes it simple and quick.

Yes. A meter is about 3 feet. 1 gallon is about 4 liters. I think 1 mile is about 1 1/2 kilometers, so yeah, I could ballpark most of them.

Down in small numbers, I can convert from inches to mm. Its handy when your missing a wrench from one set, but have it in the other

No, they’re just random nonsensical terms.

It’s the reverse for me. Metric is easy and everyone uses it but the US. So, I’m trying to convert metric into feet, inches, miles etc.

There are apps for that. I use itunes.apple.com/us/app/convert-units-free-best-unit-converter-currency-conversion/id337224035

After a couple deployments, everything in KMpH and the gym full of 20 kilo plates (and maybe drinking a few 2 liters along the way), I have a rough idea.

Yep. I grew up using metric so I can use either one.

Definitely. You can do speeds in your head by just remembering 25=40 or 62=100. Distances the same, or 1.6 to 1. Lengths as 30.5 cm per foot, 2.5 cm per inch, 39 inches per meter. 3.8 liters per gallon. 2.2 pounds per kg. You can do temperatures by remembering to add or subtract the initial 32, as necessary, and the difference above/below freezing is 1.8 to 1 (easier as 2-10%). They’re all pretty simple, but the easiest way is to just stop doing conversions and remember 25 is heavy to carry, anything over 25 is too hot, anything below 10 is getting coolish, over 150 is fast, below 50 is slow, and 10 is close to the limit of "walking distance".

MPH yes, because I've driven in Canada extensively. All the other stuff, hells no.

Yes. Also dollars to euros and pounds.

I can do most of those calculations easily.

I used it for over a decade in the Field Artillery. Those conversions are almost second nature....

I’m better at having an idea of approximate size comparison between metric and standard hardware sizes

Funny. A Canadian asked me a question...."we were doing 65mph." Was that fast enough? I said "indeed!" "About 100 kph?"
I'm well rounded. My parents did a good job 👍😎

I know the basics, 2.54 cm/in & 39.37in/m

I’m ignorant in grams.

Google is great.

Ehh, kinda

Yeah after living in France for 4 months I got pretty good.

Sure, it's not that hard. You can probably learn the basic conversion rules of thumb in less than an hour.