Percentage Calculator

Choose your calculation type and enter the values

Select the type of percentage calculation you need

Results update automatically as you type
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Result will appear here

Calculation Steps

Complete the calculation to see step-by-step breakdown

Common Percentage Calculations

Quick Examples

What is 15% of $120? $18.00
25 is what % of 100? 25%
20% tip on $50 bill $10.00
30% off $200 item $140.00

Percentage Formulas

Basic Percentage:
(Part ÷ Whole) × 100 = Percentage
Percentage of Amount:
(Percentage ÷ 100) × Amount = Result
Percentage Change:
((New - Old) ÷ Old) × 100 = % Change

How to Use the Percentage Calculator

Our percentage calculator handles the most common percentage calculations you encounter in daily life, business, and academics. Simply select the type of calculation you need and enter your values.

Types of Percentage Calculations

1. Basic Percentage (What % is X of Y?)

Use this to find what percentage one number represents of another. For example, if you scored 85 out of 100 on a test, you can find that 85 is 85% of 100.

2. Percentage of Amount (What is X% of Y?)

Calculate a specific percentage of a given amount. This is useful for calculating discounts, tax amounts, tips, or any portion of a total.

3. Percentage Change

Determine the percentage increase or decrease between two values. This is commonly used in finance, statistics, and comparing data over time.

4. Tip Calculator

Calculate tips for restaurants, delivery services, or any service industry. Includes bill splitting functionality for groups.

5. Discount Calculator

Find the final price after applying a discount percentage. Perfect for shopping, sales calculations, and determining savings.

Common Use Cases

  • Shopping: Calculate discounts, sales tax, and final prices
  • Finance: Calculate interest rates, investment returns, and loan percentages
  • Business: Analyze growth rates, profit margins, and performance metrics
  • Education: Grade percentages, test scores, and academic performance
  • Health: Body fat percentages, nutrition facts, and fitness goals
  • Statistics: Data analysis, survey results, and research findings