Percentage Calculator

What Is a Percentage Calculator?

A percentage calculator is a versatile math tool that helps you quickly solve all types of percentage-related calculations. Whether you’re calculating discounts, tips, interest rates, or test scores, this calculator makes percentage math simple and error-free.

Why Use the Calculator?

✅ Everyday Calculations – Easily figure out tips, discounts, and sales tax
✅ Academic Help – Calculate test scores and grade improvements
✅ Financial Planning – Determine interest rates and investment growth
✅ Business Use – Compute profit margins and price markups
✅ Error-Free Results – Get precise answers without manual calculation mistakes

What Can You Calculate?

Our calculator handles all common percentage problems:

1. Basic Percentage Calculations

• What is X% of Y? (e.g., 15% of 200)
• X is what percent of Y? (e.g., 50 is what % of 250?)
• Percentage increase/decrease (e.g., price changed from 80to80to100)

2. Advanced Calculations

• Percentage difference between two values
• Compound percentage changes
• Reverse percentages (find original amount before percentage change)

How to Use the Calculator

Simply choose your calculation type and enter the numbers:

1. Select calculation type (X% of Y, X is what % of Y, etc.)
2. Enter your known values
3. Get instant, accurate results

Practical Examples

• Shopping: “What’s the final price after 30% off $75?”
• Finance: “If my salary increased from 50,000to50,000to55,000, what’s the raise percentage?”
• School: “I scored 42/50 on my test – what percentage is that?”

Related Math Calculators:

1️⃣ Prime Number Calculator – Check if a number is prime
2️⃣ Margin Calculator – Calculate profit margins and markups
3️⃣ Tip Calculator – Split bills and calculate tips easily