About PureCalc
PureCalc is a set of free calculators for everyday decisions: what a salary is per hour, how much concrete a slab needs, what a loan really costs.
What we care about
The answer comes first. Every calculator shows its result as you type, and every page states its answer before anything else.
Numbers you can check. Each calculator explains its formula, lists its sources and says when it was last reviewed. Our methodology describes how every calculation is tested.
No account and no tracking of what you type. Calculations run in your browser, and the numbers you enter are never sent to us.
Free to use
Every calculator is free, with nothing to sign up for. You can share a result with a link that reopens the calculator with your inputs.