The other day I put some more work into my KRunner calculator plugin.
The built-in calculator can't do currency conversion with "to", can't solve equations, can't handle unit arithmetic. kqalc fixes all of that.
What it does:
· Math: qc 2+2, qc sqrt(2), qc 2^64
· Currency: qc 5000 GEL to USD, qc 100 EUR to KZT
· Units: qc 100 km/h to mph, qc 180 lbs to kg
· Equations: qc x^2 = 9
Just open KRunner (Alt+Space), type "qc " and your expression. Select a result to copy it to clipboard.
Available for:
· Arch (AUR): paru -S kqalc-bin
· Debian/Ubuntu: APT repo
· Nix: nix run github:noctuum/kqalc
· From source (Go)
https://store.kde.org/p/2371030
https://noctuum.github.io/kqalc