Free calculators for money, health & study

Search a calculator, or browse by category below. Every tool has its own page, with its formula, a worked example and answers to common questions.

Tap any tool above — it opens on its own separate page.

Scientific Calculator

Try one right here — no need to open another page first.

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For y√x: first type the root degree (for example 5), press y√x, then type the number (for example 32), then press =. Full Percentage Calculator →

Money

Health

  • BMI Calculator — Calculate BMI in metric or imperial units, with your category and healthy weight range

Study

  • GPA Calculator — Calculate GPA on a 4.00 scale from subjects, credits and grades

Maths

Everyday

  • Age Calculator — Calculate your age in years, months and days, plus total days and your next birthday
  • Date Calculator — Find the difference between two dates in days, weeks and months
  • Unit Converter — Convert length, weight and temperature instantly

About Us

This site provides free, simple calculators for everyday maths, health, study and money questions. Every result is calculated in your browser, so nothing you type is sent to a server or saved by us. Results are estimates for general guidance, not professional financial, medical or legal advice.

Privacy Policy

Last updated: 1 November 2026. This site does not collect calculator inputs. If advertising is added later, advertising partners such as Google AdSense may use cookies; you can opt out through Google's ad settings.

Contact Us

Send us a message using the form below. Messages are delivered to the site owner. You can also email directly: hussainzahir84@yahoo.com.