Percentage Calculator
Work out percentages, increases, and shares.
Percentages, three ways
This covers the everyday questions: what is 15% of 80, what percent is 12 of 48, and what is the change from 40 to 50. Each is a one-line formula the tool applies instantly.
It is the everyday utility for tips, discounts, tax, and grades — anywhere you need a quick percentage of a number, or to express one number as a percentage of another.
Percent vs percentage points
A rise from 10% to 12% is two percentage points but a 20% relative increase — a common mix-up. The math runs locally in your browser. The numbers you enter stay in the browser and are never uploaded.
Frequently Asked Questions
How does this percentage calculator work?
It uses the numbers you enter and applies the visible formula or planning rule in your browser.
Is this financial advice?
No. This is an educational estimate for planning. Check important decisions with a qualified financial professional.
Are my numbers uploaded?
No. The calculation runs locally in your browser and nothing is stored by this page.
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