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Percentage Calculator

Calculate percentages easily. Find X% of Y, percentage of, and percentage change.

What is X% of Y?

What is% of?

X is what % of Y?

is what % of?

Percentage change from X to Y

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How to Use Percentage Calculator

1

Choose your calculation type

Select the type of percentage calculation: percentage of a number, percentage change, or fraction-to-percentage conversion.

2

Enter your values

Input the numbers for your calculation. For example, enter 25 and 200 to find "25% of 200".

3

Get instant results

The calculator instantly displays the result. Copy it or try another calculation.

About Percentage Calculator

Calculate percentages online for free with our Percentage Calculator. Solve any percentage problem instantly: find what percent one number is of another, calculate a percentage of a number, compute percentage increase or decrease, and convert between fractions and percentages. Essential for math homework, financial calculations, discount pricing, tax computations, and tip calculations. Instant results in your browser.

Key Features

  • Calculate what percentage one number is of another instantly
  • Find the percentage of any number (e.g., 25% of 200)
  • Calculate percentage increase or decrease between two values
  • Convert between fractions, decimals, and percentages
  • Multiple calculation modes for all common percentage problems
  • Free online calculator — no signup, instant results in your browser

Frequently Asked Questions

How to calculate percentage of a number?▾
Enter the percentage and the number (e.g., 25% of 200 = 50). The calculator multiplies the number by the percentage divided by 100.
How to calculate percentage increase or decrease?▾
Enter the original value and the new value. The calculator shows the percentage change.
How to find what percentage one number is of another?▾
Enter both numbers and the calculator divides the first by the second and multiplies by 100. For example, 30 is 60% of 50.
How to calculate a discount percentage?▾
Enter the original price and sale price. The calculator shows the discount percentage. For example, $80 from $100 is a 20% discount.
How to convert a fraction to a percentage?▾
Enter the numerator and denominator. The calculator divides them and multiplies by 100. For example, 3/4 = 75%.
How to calculate percentage for grades?▾
Enter your score and total possible points. The calculator shows your percentage grade.
Is this percentage calculator free?▾
Yes, completely free with no signup. All calculations happen instantly in your browser.
How to calculate tip percentage?▾
Enter the tip amount and bill total to find the tip percentage, or enter the bill total and desired percentage to calculate the tip amount.