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Percentage Calculator

This free online Percentage Calculator easily handle all kinds of percentage calculations.

What is % of ?
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is what % of ?
%
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Percentage increase / decrease

by %
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Percentage difference

From to ?
%
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Difference:
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Percentage Difference Calculator Percentage Change Calculator Percentage Increase Calculator Percentage Decrease Calculator

About

This Percentage Calculator is a simple yet powerful tool designed to help you calculate percentages for a wide range of uses quickly and effortlessly. Whether you’re calculating a discount, checking how much a value has increased or decreased, calculating a tip, or finding the percentage between two numbers, our percentage calculator makes it simple. Unlike other percentage calculators, this one calculates results automatically as you type. It was built with user experience in mind—especially on mobile devices—featuring a clean, modern layout that’s both intuitive and responsive. We created this tool to make percentage calculations smoother, faster, and more enjoyable for everyone.

What is a percentage and why is it useful?

A percentage is a way of expressing a number as a fraction of 100. It’s used to describe proportions, compare values, and measure change. In everyday life, percentages show up everywhere—from sales tax and interest rates to test scores and investment returns. Understanding how to calculate and interpret percentages is essential for making informed financial, academic, and business decisions. That’s why having a flexible and accurate percentage calculator is so helpful.

Common real-life uses of percentages

Percentages are part of everyday decisions. When you’re shopping and see “20% off,” you’re dealing with a percent discount. When your salary increases or you compare prices over time, that’s percentage increase or percentage change. Even when calculating grades or splitting bills at a restaurant, percentage calculations are involved. Our percentage calculator helps make all these tasks quicker and easier, no matter the situation.

Percentage vs. Percent

The terms “percentage” and “percent” are related but used differently:

  1. Percent:
    • Function: A unit or adverb used with a specific number.
    • Usage: Follows a numeral (e.g., “50%,” “10 percent”). It can act as a noun (e.g., “20% of the budget”) or adverb (e.g., “Prices rose 5%”).
    • Symbol: Represented by “%”.
    • Example: “She scored 95 percent on the exam.”
  2. Percentage:
    • Function: A general noun referring to a proportion or rate, without a specific number.
    • Usage: Preceded by articles (a, the) or adjectives (high, low, small). Refers to the concept broadly.
    • Example: “A large percentage of the audience applauded.”

Key Differences:

  • Number association: Use “percent” with numbers; use “percentage” without.
  • Modifiers: “Percentage” takes adjectives (e.g., “low percentage”); “percent” does not.
  • Grammar: “Percent” can function as a noun/adverb; “percentage” is always a noun.

Incorrect: “A high percent of voters…”
Correct: “A high percentage of voters…” or “70 percent of voters…”

How to manually calculate percentages

To find a percentage, divide the part by the whole and then multiply by 100. For example, if you scored 45 out of 60 on a test, divide 45 by 60, then multiply by 100 to get 75%. This means your score is 75 percent. Our percentage calculator does this instantly for you, but knowing the formula helps you understand how the numbers work behind the scenes.

Percentage increase vs. percentage change vs. percent off

These terms sound similar but have different meanings.
Percentage increase shows how much a number has grown compared to its original value—for example, prices rising from $100 to $120 is a 20% increase.
Percentage change refers to how much something has gone up or down overall—it can be either positive or negative.
Percent off is usually used in shopping, showing how much you’re saving from the original price. This calculator helps you handle all of these with ease, by selecting the right mode for each scenario.

More Calculators

If you’re working with percentages in different contexts, you may also find these calculators helpful:

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