A simple and versatile online percent calculator. Quickly find percentages of numbers, calculate percentage increases or decreases, and solve other common percentage problems. 

30% Off a $79.99 Item." Let's Ditch the Mental Math.

Percentages are everywhere. From store discounts and restaurant tips to financial reports and fitness goals, they are a part of our daily lives. While the concept seems simple, the actual calculation can sometimes trip us up. What's the final price after that discount? By what percentage did your investment grow?

Instead of pulling out your phone's calculator and trying to remember the right formula for each scenario, a dedicated percent calculator simplifies it all. It's designed to answer the common percentage questions we face every day, instantly and accurately.

Three Common Problems, One Simple Tool

Our percent calculator can solve the three most common percentage questions:

1. What is X% of Y?

   • Example: "What is 18% of $65?" (Perfect for calculating a tip).

2. X is what percent of Y?

   • Example: "I got 45 questions right out of 50. What percent is that?" (Great for figuring out a test score).

3. What is the percentage increase or decrease?

   • Example: "My rent went from $1200 to $1250. What was the percentage increase?" (Essential for tracking finances).

How to Get Your Answer Instantly

Just plug your numbers into the plain-English sentence that matches your question.

1. Open the Percent Calculator: Go to the FreeXTool Percent Calculator.

2. Choose Your Question: Select the type of problem you are trying to solve from the simple options available.

3. Fill in the Blanks: Enter your numbers into the corresponding fields.

4. Click "Calculate": The tool will immediately give you the clear, accurate answer you need.

Pro-Tip: The 10% Mental Math Trick

Need to do a quick estimate in your head? The easiest percentage to calculate is 10%. Just move the decimal point one place to the left. For a $65 bill, 10% is $6.50. If you want to leave a 20% tip, just double that number ($13.00). It's a great way to check if a calculation feels right.

Make sense of your numbers with these other powerful calculators:

• Tip Calculator

• GPA Calculator

• ROI Calculator