SmartCalc - Advanced Online Calculators

SmartCalc.io

Smart Calculations, Instant Results

A suite of powerful calculators designed to simplify complex calculations. Free, accurate, and easy to use.

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Percentage calculation

15% of 240 = 36

Change calculation

120 to 150 = +25%

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Daily Calculations

12+

Calculation Tools

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Percentage Calculator

A versatile tool that helps you solve various percentage-related calculations quickly and accurately.

What is X% of Y?

of
Result
30

X is what % of Y?

is what % of
Result
15%

Percentage Change Calculator

to
Result
+25%

Quick Tips

  • Use tab key to move between fields
  • Results update automatically as you type
  • Color-coded results show increases (green) and decreases (red)
  • Recent calculations are saved in your browser

Why Choose Our Calculators

Our tools are designed with precision and user experience in mind to make calculations fast, accurate, and simple.

Instant Results

See calculations update in real-time as you type without having to click any buttons.

Accuracy Guarantee

Our calculators are built with precision to ensure reliable and accurate results every time.

Intuitive Design

Clean, modern interface with clear visual feedback makes calculations simple and efficient.

Mobile Friendly

Optimized for all devices so you can calculate on the go from any smartphone or tablet.

Explore Our Calculators

We offer a wide range of specialized calculators to help you with various tasks and calculations.

Percentage Calculator

Calculate percentages, discounts, increases, and more with ease.

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GST Calculator

Calculate GST inclusive and exclusive amounts for invoices and pricing.

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EMI Calculator

Calculate your loan EMIs, total interest payable, and amortization schedule.

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Age Calculator

Calculate exact age in years, months, weeks, and days from any date.

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Date Difference

Calculate the exact difference between two dates in various units.

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Profit & Loss

Calculate profit/loss percentage, markup, and margin for business analysis.

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About Percentage Calculator

Our Percentage Calculator is a versatile tool that helps you solve various percentage-related calculations quickly and accurately. Whether you're calculating discounts, tax rates using our GST Calculator, analyzing business profits, or determining loan interest with our EMI Calculator, this tool makes percentage calculations simple and efficient.

Percentages are a fundamental concept in mathematics and everyday life. They represent a ratio or number expressed as a fraction of 100. Our calculator is designed to simplify the three most common percentage calculations:

  • Finding a percentage of a given number (e.g., 15% of 200)
  • Finding what percentage one number is of another (e.g., 30 is what % of 200)
  • Finding the percentage change between two numbers (e.g., from 100 to 125 is a 25% increase)

Whether you're a student working on assignments, a business professional analyzing profit margins, or anyone needing quick percentage calculations, this calculator provides accurate results instantly.

What Our Users Say

Trusted by students, professionals, and businesses worldwide.

D

David Miller

Finance Professional

"This calculator has been an incredible time-saver for my daily financial analysis tasks. It's intuitive, accurate, and has all the options I need. Highly recommended!"

S

Sarah Johnson

Math Teacher

"I recommend this calculator to all my students. It's not only accurate but also helps them understand how percentage calculations work. The clean interface makes it easy to use!"

User Ratings

4.8 /5
5 star
85%
4 star
10%
3 star
3%
2 star
1%
1 star
1%

Based on 797 reviews

Ready to Simplify Your Calculations?

Accurate calculations are just a click away. Try our calculators now and save time on your daily tasks.

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