Percentage Calculator
Percentage Calculator is a free online tool to calculate percentages.
No ads to bother you • Easy to use • Free to use
Ex: What is 25% of 100?
Ex: 25 is what % of 100?
Ex: What is the percentage increase from 50 to 75?
Tips: Use tab to move to the next field. Use shift+tab to move to the previous field. Press enter to calculate.
Learn About Percentages
Understanding Percentages in Daily Life
Percentages are everywhere in our daily lives. From calculating tips at restaurants to understanding discounts while shopping, percentages help us make informed decisions. A percentage represents a fraction of 100, making it easy to compare different values and understand proportions.
For example, when you see a 20% discount on a $50 item, you can quickly calculate that you'll save $10 and pay $40. Understanding this concept helps you budget better and make smarter financial choices.
Common Percentage Calculations
There are three main types of percentage calculations: finding a percentage of a number (What is 15% of 200?), finding what percentage one number is of another (30 is what % of 150?), and finding percentage change (What's the % increase from 100 to 120?).
Mastering these three calculations will help you handle most percentage problems you encounter in everyday situations.
Quick Mental Math Tricks
Here are some shortcuts for common percentages: 10% - move the decimal point one place left, 5% - half of 10%, 25% - divide by 4, and 50% - divide by 2. For example, 10% of 250 = 25, 5% of 250 = 12.5.
These shortcuts can help you calculate percentages quickly without a calculator, making you more confident in everyday situations.
Real-World Applications
Percentages are crucial in finance (interest rates, investment returns), business (profit margins, growth rates), health (success rates, dosages), and education (test scores, grade calculations).
Understanding percentages gives you the tools to analyze data, make comparisons, and communicate information effectively in any field.
Common Mistakes to Avoid
Avoid confusing percentage points with percentages (a change from 10% to 15% is 5 percentage points, not 5%), forgetting to identify what the percentage is "of", and assuming that a 50% increase followed by a 50% decrease returns to the original value.
Being aware of these common pitfalls will help you use percentages more accurately and avoid costly mistakes in calculations.
About
This website is designed to help you quickly and easily calculate percentages for a variety of purposes. Whether you're calculating discounts, calculating tips, or trying to figure out how much something has increased or decreased in value, our percentage calculator can help.
FAQ
What is a percentage?
A percentage is a way of expressing a number as a fraction of 100. It is often denoted using the "%" sign or the abbreviation "pct". Percentages are used to express how large one quantity is relative to another quantity.
How do you calculate a percentage?
To calculate a percentage, you typically divide the part by the whole and then multiply by 100. The formula is: Percentage = (Part / Whole) * 100. For example, if you want to find out what percentage 25 is of 100, you would calculate (25 / 100) * 100 = 25%.