Calculates the value corresponding to a specific percentage (X%) of the total value (Y).
Calculates the percentage that the part value (X) occupies within the whole value (Y).
Calculates the percentage increase or decrease between two values.
Percentage is a way of representing a part of a whole as a fraction of 100. Percentage calculations are essential in various fields such as daily life, business, and academics. For example, the concept of percentage is used in countless situations, including calculating discount rates during sales, understanding investment returns, and checking fluctuations in test scores. Manual calculation can be cumbersome and prone to errors, especially when dealing with complex numbers or requiring multiple calculations. In such cases, our easy and fast online percentage calculator helps you save time and get accurate results.
Our percentage calculator supports the three most commonly used types of percentage calculations. First, ‘X% of Y’ is used when you want to know the actual value corresponding to a specific percentage of the total value. For example, it’s useful when calculating a 15% discount on a 200,000 KRW product. Second, ‘X is what percent of Y’ is used when you want to know what percentage a specific value represents of the total. For example, if you got 40 out of 50 questions correct, you can calculate the percentage of correct answers. Third, ‘percentage change’ expresses in percentage how much a value has changed (increased or decreased) over time. For example, it is used to calculate how much sales grew if last year’s sales were 10 million KRW and this year’s became 12 million KRW. Our calculator’s goal is to provide accurate and quick calculations for these various situations.
Our percentage calculator is very intuitive and easy to use. Simply enter the required values into the input fields for each calculation type and click the ‘Calculate’ button to instantly see the results.
If a non-numeric value is entered into an input field, or if an impossible calculation (e.g., division by zero) occurs, an error message will be displayed to guide you to correct input.
Using an online percentage calculator can reduce calculation errors and save time. It’s convenient because you don’t need to remember complex formulas; just enter the necessary numbers to get immediate results. Furthermore, it’s accessible anytime, anywhere, on any device—smartphone, tablet, or desktop—as long as you have an internet connection.
This tool can be used for various purposes, such as students’ homework, merchants’ price and discount calculations, professionals’ report preparation, or personal financial management. By providing accurate and fast results, it makes the user’s work more efficient. Try it now!
A: A percentage is a way to express a part of a whole as a proportion of 100. It is denoted by the symbol %, meaning ‘out of 100’. For example, 50% means 50 out of 100 of the whole, which is half.
A: Percentage calculation results can be decimal numbers, not just integers, depending on the situation. Our calculator generally displays values up to two decimal places to provide accurate results. You can round them as needed.
A: There isn’t a specifically defined input range, but extremely large or small numbers may result in tiny inaccuracies due to the limitations of computer floating-point arithmetic. This typically isn’t an issue for general calculations. Also, when calculating percentage change, entering 0 for the start value (old value) will cause a division-by-zero error, so you must enter a valid non-zero number.
A: Yes, our website is built with responsive web design, so you can conveniently use it on any device—smartphone, tablet, or desktop—with an optimized layout that adjusts to the screen size.