Percentage calculator
Free, no sign-up. everything runs in your browser
What is X% of a value?
One value is what % of another?
Apply a discount or increase
Change between two values
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How to use
1
Fill in the fields — nothing is sent to the internet.
2
Tap Calculate and see the breakdown instantly.
3
Adjust the values as many times as you want. Done — no sign-up, no e-mail, no waiting.
Frequently asked questions
Use the "Apply a discount or increase" block: type the original price and the percentage — the final value and your savings appear instantly.
In "Change between two values", enter the old and new values: the calculator shows the increase or decrease as a percentage and as an amount.
No — results appear automatically as you type, in every block. Change a number and the result updates by itself.