switching is easy
straddling two systems irksome
I grew up with feet & inches, but wouldn't do accurate measurements in anything other than metric.
but buying petrol in Litres and travelling in Miles...
![Huh?! [huh]](https://www.festoolownersgroup.com/Smileys/default/huhsmiley.gif)
so it's roughly 5L per gallon - but I've given up checking my fuel consumption...