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Calculators100% Free25 tools

Free Money, Health and Home Calculators

Plan loans and savings, add or remove tax, price a product, check your health numbers, train smarter and estimate paint, tiles and concrete. Everything runs in your browser.

Loans and savings

Tax and prices

Business

Health and fitness

Home and building

How These Calculators Work

Every calculator on this site runs in your browser with JavaScript. The numbers you type are processed on your own device. They are not uploaded, stored or logged, and no outside service is used. Each tool shows the answer and then the working, so you can check the steps.

Money tools use standard formulas for interest, instalments and tax. Health tools use published equations. Home tools use common industry allowances. Results are estimates, so check important ones with a professional.

Which Calculator Should I Use?

More free tools: math calculators, unit converters, date and time tools and color tools. For the maths behind interest, read the Wikipedia article on interest.