this post was submitted on 09 Dec 2024
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[–] GreatAlbatross@feddit.uk 5 points 8 months ago* (last edited 8 months ago)

I end up doing a lot of lazy maths, and remembering rough numbers.

45MPG? That's about 10 miles per litre.
8 inches? Eh, 20cm.

Anything remotely technical, I convert everything to metric (and actually take the time do accurately).
Having the inch-fractions to mm table on the back of a ruler is very useful when using old drill bits and spanners.