I tried to enumerate the units of measure in which I actually work and think, and it ended up being pretty interesting (at least to me). It’s a mess of units from varied systems, some of which have context-dependent meaning (e.g., sample or frame).
These are the units I use and naturally understand without having to do any conversion or math. The units that are completely intuitive to me. In order from smallest to largest.
I leave out any that I only use in an abstract sense (e.g., Kelvins or centuries). These are the units in which I live.
Length / Distance
- story (vertical only)
- square foot
- square mile
- cubic centimeter
- Fahrenheit degree
Weight / Mass
- ton (~2000lb)
(I don’t actually bother differentiating Megabytes from Mebibytes in practice. Only when I’m calculating something.)