About toolvasta

toolvasta is a library of free online calculators, converters and generators. Each tool is built to give a clear answer quickly, show the formula behind it, and work on any device without an account.

We focus on accuracy first. Financial tools follow published Canadian rules where they apply, health tools use widely accepted clinical equations, and every page states its assumptions.

Results are estimates for general information. For decisions about money, health or law, please confirm with a qualified professional.