Percentage Calculator
What is X% of Y, percentage change, and "X is what % of Y". Free, private, no sign-up — runs in your browser.
Percentage Calculator
Three percentage calculators in one: find X% of a number, work out what percent one number is of another, and calculate percentage increase or decrease between two values.
1 · What is X% of Y?
2 · X is what percent of Y?
3 · Percentage change from X to Y
About this Percentage Calculator
The three most common percentage questions, each answered live as you type. Use form 1 for discounts and tips, form 2 for scores and shares, and form 3 for growth, price changes or weight loss. Results are rounded to four decimal places.
Frequently asked questions
How do I calculate a discount?
What is the difference between percentage change and percentage points?
Why is change from a negative number tricky?
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