Percentage Calculator
Percentage calculator free in your browser. Calculate percentage, find what percent a value represents, and apply increases or decreases without installing anything.
Result
30
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How to use the percentage calculator
- Choose a mode: X% of Y, X is what % of Y, or Y ± X% (increase or decrease).
- Enter values in the numeric fields; the result is calculated instantly.
- Review the result and adjust values or mode as needed.
What is it for?
Percentage calculator solves everyday questions: calculate percentage for discounts, tips, commissions, or shares in seconds without manual formulas.
Calculate percentage free in the browser when comparing prices, analyzing sales, preparing budgets, or studying changes between two amounts.
The percentage calculator runs locally on your device: you don't upload data to servers or need to install apps.
Frequently asked questions
Which modes does the percentage calculator include?
Three modes: calculate X% of Y, find what percentage X is of Y, and apply an X% increase or decrease to Y.
Can I calculate percentage with decimals?
Yes. It accepts decimal numbers in all fields and shows results with up to four decimal places.
Is the percentage calculator free?
Yes. It is 100% free, runs in the browser, and requires no sign-up or installation.
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