Gnome calculator uses 103m, it’s loading style sheets for themes, UI libraries that make it look nice and modern, scientific calculator features, keyboard shortcuts, nice graphical settings menu, touch screen and screen reader support etc

I don’t think in this day and age for all the niceties people are used to that’s unreasonable.

Also other calculators are available, some are bloated but I’m sure there’s a rust or C one out there somewhere that uses a fraction of that with the bare minimum feature set