Using the Everyday calculators
Enter your own figures to get an instant estimate, then read the formula, worked example and FAQ on each tool for the detail behind the result. Every calculator runs privately in your browser — nothing you type is stored or sent anywhere.
Frequently asked questions
What is the 50/30/20 budget?
Needs 50%, wants 30%, savings and debt 20% — a flexible starting point.
Why compare unit prices?
Bigger packs aren't always cheaper; price per unit reveals the real deal.
Gross or net figures?
Wage tools show gross pay unless stated; subtract tax for take-home.