I deal with measurements more often than I’d like to admit.
Sometimes it’s reviewing documents from different regions, sometimes it’s checking specs shared by someone else on the team. Most of the time, the numbers are simple — millimeters, centimeters, inches — nothing complicated.
Still, I’ve learned not to trust myself too much with quick mental conversions.
It’s not that I don’t know the formulas. I do. But when I’m switching contexts a lot, it’s easy to miss a decimal or mix up units, especially when the document jumps between metric and imperial systems.
In those moments, I usually just pause and double-check. If I’m already in the browser, I’ll sometimes use a small converter to confirm the value instead of redoing the math in my head. One page I’ve used for this is:
https://mmtocm.net/
I don’t depend on it heavily, and I wouldn’t use it for anything complex. It’s simply a quick way to make sure I’m reading the numbers correctly before moving on.
Over time, I’ve found that spending a few extra seconds verifying units saves more time than fixing mistakes later.
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