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Create a QR code for a link, Wi-Fi, WhatsApp, contact and more, or read one from a photo.
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Fill in the details to see your QR code.
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Percentage calculator
X% of Y, what percent X is of Y, percentage change, and adding or removing a percentage.
- Free
- No sign-up
- Works on any device
About Percentage calculator
Answer the three most common percentage questions: what is X% of Y, what percent is X of Y, and how much is a value after an increase or decrease of X%. Handy for discounts, tips, grades, tax and price changes.
How to use Percentage calculator
- Enter your numbers above.
- The result updates instantly as you type.
- Change any value to compare different cases.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. For example 15% of 80 is 80 × 15 ÷ 100 = 12.
How do I find the percentage change between two numbers?
Subtract the old value from the new one, divide by the old value and multiply by 100. A price going from 50 to 60 is a 20% increase.
Is Percentage calculator free?
Yes. Percentage calculator on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.