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➗ Percentage Calculator

Find X% of Y, what percent X is of Y, or the percentage change between two values.

How to use: Percentage Calculator

Find X% of Y, what percent X is of Y, or the percentage change between two values. Everything happens inside your browser on your own device. Your files, numbers and text are never uploaded, there are no accounts, cookies or trackers, and closing the tab removes the data.

Common uses

Step by step

  1. Pick the calculation type.
  2. Enter the two numbers.
  3. The result appears instantly.

Worked example

For example, 15% of 240 is 36, 30 is 25% of 120, and a change from 80 to 100 is a 25% increase.

Tips for better results

Double-check the numbers you type, especially decimal points and the rate. The results follow standard formulas and published rules, but your contract, bank or tax authority has the final word, so use the figures as a careful estimate. The page is designed for phones first, so it works on a 375-pixel screen as well as on a desktop.

Good to know

The calculation updates as you type, and nothing you enter is saved or sent anywhere. Amounts are rounded for display to two decimal places, so a total may differ by a fraction from a bank statement. Tax rates, social insurance rules and labour laws change from time to time; we update the tool when official rules change, but always check the current rule for a large or legal decision.

Why a browser-based tool?

Many online tools upload whatever you give them to a remote server, process it there and send it back. That is slower on a weak mobile connection and means a copy of your document, photo or figures sits on someone else’s computer. Free Adawat works differently: the code is downloaded once, then the work happens on your phone or computer. That keeps personal papers such as passports, visas, salary slips and contracts private, and it also means there is no queue, no file count limit and no waiting for a download link.

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FAQ

How is percent change computed?

(new − old) ÷ old × 100.

Are decimals supported?

Yes.

Is Percentage Calculator free?

Yes. It is completely free, with no sign-up, no watermark and no daily limit. The only limit is your device memory for very large files.

Are my files or data uploaded?

No. All processing happens in your browser on your device. Nothing you enter or select is sent to a server.

Does it work on a phone?

Yes. It works in modern mobile browsers on Android and iPhone, and on tablets and computers.

Does it work without internet?

Once the page has fully loaded, the tool runs on your device, so it keeps working if the connection drops. Pages you have visited before can often open offline too.

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