FREE CALCULATOR
Percentage Calculator
Calculate any percentage instantly. Find what percent X is of Y, work out percentage changes, and more - all in one tool.
What is X% of Y?
X is what percent of Y?
Percentage change from X to Y
Why Use Our Percentage Calculator?
Three Calculators in One
Calculate what percent X is of Y, find X% of Y, and calculate percentage change between two numbers - all on one page.
Real-Time Results
Results update instantly as you type. No need to press a calculate button - the answer appears immediately.
Percentage Change Direction
Automatically labels the result as an increase or decrease so you always know which direction the change went.
Handles Any Number
Works with decimals, large numbers, and negative values. Great for finance, discounts, grades, and statistics.
100% Private
All calculations happen in your browser. No data is sent anywhere.
No Sign-up Required
Open and start calculating immediately. No account, no email, no fees.
Frequently Asked Questions
How do I find what percent X is of Y?
Use the second calculator on the page. Enter X in the first field and Y in the second. The result shows X as a percentage of Y instantly.
How do I calculate 20% of 350?
Use the first calculator. Enter 20 in the percentage field and 350 in the number field. The result is 70.
How do I calculate percentage increase?
Use the third calculator. Enter your starting number as X and your ending number as Y. A positive result means an increase.
What is percentage decrease?
If the result in the third calculator is negative, that is a percentage decrease. The result shows the percentage the value dropped.
Can I use decimals?
Yes. All three calculators accept decimal numbers in any field. Results are shown with up to six decimal places of precision.
Is this percentage calculator free?
Yes. It is completely free with no sign-up, no account, and no hidden fees.
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