70+ accurate tools for math, money, school, fitness, and everyday tasks. Open a calculator, enter your numbers, and get a clear result.
Try: Fraction · Percentage · Tip · CGPA · TI-84
CalculatorAuxo is a free browser toolkit for people who need a reliable answer without installing software. Each page is built around one job — adding fractions, estimating a paycheck, planning a grade, or converting steps to miles — and explains the inputs so you know what the number means.
Tools run on your device. We do not ask you to sign in to calculate, and we do not store the values you type. If a result is an estimate, the page says so.
Three steps. No account, no install, no guesswork about what to type.
Search, open a category, or start from a popular calculator. Match the task, not the subject label.
Fields use plain labels. Empty or invalid numbers show a message instead of a silent wrong answer.
Copy, print, or reset. Formula notes and a worked example sit on the same page when you want to check the method.
These are the tools people open first. Each link goes to a full page with inputs, results, and a short guide.
Open a page and calculate. Nothing here requires an account for standard tools.
Math runs locally so results appear as you type, including on a phone.
Guides show the formula, a worked example, and when the output is only an estimate.
Your numbers stay in the session. Copy or print if you need a record.
Short guides on calculator use, exam rules, and everyday number problems. Dates below match the published article.
Open a calculator and get an answer in seconds. The fraction tool is a good first stop if you are not sure where to begin.