Percentage Calculator
Calculate percentages in three different modes
Quick examples
What is a Percentage Calculator?
A percentage calculator is a tool that helps you quickly calculate percentages in various scenarios. Whether you need to find a percentage of a number, calculate percentage change, or determine a ratio, this tool provides instant, accurate results.
Three Calculation Modes
1. Percentage of a Number
Find what percentage of a number is. For example: 25% of 200 = 50. This is useful for calculating discounts, tips, taxes, and commissions.
2. Change by Percentage
Increase or decrease a number by a percentage. For example: Increase 200 by 25% = 250. This is useful for calculating price changes, salary increases, and growth rates.
3. Percentage Ratio
Calculate what percentage one number is of another. For example: 50 is 25% of 200. This is useful for comparing values, analyzing proportions, and understanding distributions.
Who Uses a Percentage Calculator?
- Shoppers — Calculating discounts and sale prices
- Business owners — Computing profit margins and markups
- Students — Solving math problems and homework
- Financial analysts — Analyzing data and trends
- Anyone — Dealing with percentages daily
Why Use Our Percentage Calculator?
- Free and unlimited — No sign-up, no limits
- Three modes — All common percentage calculations in one tool
- Instant results — See calculations as you type
- Visual bar chart — Visual representation of results
- Quick examples — Try common scenarios with one click
- Privacy-first — All calculations happen in your browser
Common Use Cases
- Discount calculation — "What is 20% off $150?"
- Tip calculation — "What is 15% of $45?"
- Grade calculation — "What percentage is 18 out of 20?"
- Price increase — "What is $50 with a 10% increase?"
- Data analysis — "What percentage is this of the total?"