Utilko logo Utilko

Percentage Calculator

Calculate percentages instantly. Find what percent one number is of another, increase/decrease by a percentage, or work out the original value from a percentage.

Used 21.1K times today

How to Use Percentage Calculator

  1. 1

    Choose your calculation type

    Select whether you want to find a percentage of a number, the percentage difference, or the original value before a percentage change.

  2. 2

    Enter your values

    Type the numbers into the input fields. The calculator updates results in real time as you type.

  3. 3

    Read your result

    The answer is displayed instantly below the inputs. Copy it or use it in your next calculation.

Frequently Asked Questions

How do I calculate what percentage X is of Y?
Divide X by Y and multiply by 100. For example, 25 is 50% of 50 because (25 ÷ 50) × 100 = 50.
How do I find a percentage increase?
Subtract the original value from the new value, divide by the original value, then multiply by 100. A rise from 80 to 100 is a 25% increase.
Can I calculate reverse percentages?
Yes. Enter the final value and the percentage that was applied, and the tool will calculate the original value before the percentage was added or removed.
Is this calculator free to use?
Yes, the Percentage Calculator is completely free with no registration required. All calculations happen in your browser.

About Percentage Calculator

The Percentage Calculator on Utilko handles every common percentage problem in seconds. Whether you need to find what percentage one number is of another, calculate a percentage increase for a business report, or reverse-engineer an original price after a discount, this tool covers all three scenarios with a clean, intuitive interface.

All calculations run locally in your browser, so no data is ever sent to a server. It is ideal for students checking homework, shoppers comparing deals, and professionals working with financial or statistical data who need quick, accurate answers without opening a spreadsheet.

More Math & Calculators Tools

Age Calculator

Calculate your exact age in years, months, days, hours, and minutes from your date of birth. Find the age difference between two dates instantly.

BMI Calculator

Calculate your Body Mass Index (BMI) using metric or imperial units. Understand your BMI category — underweight, normal, overweight, or obese — instantly.

EMI Calculator

Calculate your Equated Monthly Installment (EMI) for home loans, car loans, and personal loans. View a full amortization schedule with interest breakdown.

Tip Calculator

Calculate the perfect tip for any bill. Set your tip percentage, split the total among multiple people, and see exactly what everyone owes.

Discount Calculator

Find the final price after a discount, the percentage saved, or the original price before a sale. Perfect for shopping, retail pricing, and coupon calculations.

Average Calculator

Calculate the mean, median, mode, and range of any set of numbers. Enter a list of values and get a full statistical summary instantly.

GPA Calculator

Calculate your GPA (Grade Point Average) on a 4.0 or custom scale. Add courses with grades and credit hours to get your cumulative GPA instantly.

Scientific Calculator

A full-featured scientific calculator with trigonometric functions, logarithms, exponents, factorials, and more. Perform advanced math calculations in your browser.