Online Percentage Calculator

Quickly calculate percentages, add or subtract percentages from numbers.

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Percentage Calculator - Calculate Percentages Online Free

Free percentage calculator online. Calculate percentage of a number, percentage increase/decrease, and find what percent one number is of another. Instant results.

📊 Percentage Calculator - Calculate Percentages Online Free

Calculate percentages easily: find % of number, percentage increase/decrease, percentage difference. Quick results!

Instant Results

Real-time calculation

Multiple Types

% of, increase, decrease, difference

Mobile-Friendly

Works on all devices

No Installation

Use directly in browser

Types of Percentage Calculations

Find X% of Y

What is a certain percentage of a number?

Formula: (X ÷ 100) × Y = Result
Example: 20% of 500 = (20 ÷ 100) × 500 = 100
  • Calculate discount amounts
  • Find tip amounts (15%, 18%, 20%)
  • Determine tax amounts
  • Commission calculations
Percentage Increase

Calculate growth from one value to another

Formula: ((New - Old) ÷ Old) × 100
Example: 100 to 150 = ((150-100)÷100)×100 = 50% increase
  • Salary raise calculations
  • Investment growth tracking
  • Sales growth analysis
  • Population increase studies
Percentage Decrease

Calculate reduction from one value to another

Formula: ((Old - New) ÷ Old) × 100
Example: 200 to 150 = ((200-150)÷200)×100 = 25% decrease
  • Discount calculations (sale prices)
  • Weight loss tracking
  • Expense reduction analysis
  • Depreciation calculations
X is What % of Y

What percentage does one number represent of another?

Formula: (X ÷ Y) × 100
Example: 50 is what % of 200? = (50÷200)×100 = 25%
  • Test scores (marks percentage)
  • Budget allocation analysis
  • Market share calculations
  • Completion percentage

Percentage Calculator Use Cases

Shopping & Discounts
  • Calculate sale price: ₹2000 with 30% off = ₹1400
  • Compare discounts: 25% off vs ₹500 off
  • GST calculation: Add 18% GST to product price
  • Cashback offers: 10% cashback up to ₹200
Restaurant Tipping
  • Calculate 15% tip on ₹800 bill = ₹120
  • Split bill with friends + tip
  • Service charge verification
  • Total amount including tax + tip
Business & Finance
  • Profit margin: (Revenue - Cost) ÷ Revenue × 100
  • Interest rate calculations
  • Sales tax/VAT computation
  • Year-over-year growth analysis
Education
  • Exam marks percentage: 450/500 = 90%
  • Grade calculations
  • Attendance percentage
  • Course completion tracking

Frequently Asked Questions

Basic percentage formula:

  • Find X% of Y: (X ÷ 100) × Y
  • X is what % of Y: (X ÷ Y) × 100
  • Percentage Change: ((New - Old) ÷ Old) × 100
  • Tip: To convert % to decimal, divide by 100 (25% = 0.25)
  • Example: 15% of 200 = 0.15 × 200 = 30

Quick mental math tricks:

  • 10% Tip: Move decimal one place left (₹800 → ₹80)
  • 15% Tip: Find 10%, then add half of it (₹80 + ₹40 = ₹120)
  • 20% Tip: Double the 10% amount (₹80 × 2 = ₹160)
  • 18% Tip: 10% + (half of 10%) + (quarter of 10%)
  • Our Calculator: Just enter bill amount and tip % for instant result!

Benefits

Why Use Percentage Calculator?
  • Time-Saving: Instant results without manual calculation
  • Error-Free: Eliminate calculation mistakes
  • Versatile: Handles multiple percentage problem types
  • Learning Aid: Shows formulas to help you learn
  • Daily Utility: Useful for shopping, dining, finance
Tool Features
  • Multiple Calculators: All percentage types in one place
  • Step-by-Step: Shows calculation process
  • Copy Results: One-click copy to clipboard
  • Mobile-Optimized: Perfect on phones, tablets, desktops
  • 100% Free: Unlimited calculations, no registration

Calculate Percentages Now!

Solve percentage problems instantly—free forever!