Free Stock Average Calculator : Calculate your Average

Stock Average Calculator

New Average Price: ₹–

📈 Stock Average Calculator

📊 Portfolio Info

Current Average: ₹–

Current Total Value: ₹–

After Buy Total Value: ₹–

Image to PDF Converter – Free

✅ Overview:

The Stock Average Calculator is a simple, mobile-friendly web application designed to help investors and traders quickly determine the new average price of a stock after buying additional shares at a different price.

Whether you’re averaging down or averaging up, this tool gives you a clear view of your portfolio’s updated cost basis and value — instantly.

🎯 Key Features:

1. Input Fields:

  • Total Stock Quantity You Hold
    Enter the number of shares you already own.
  • Buying Price (Average)
    The average price at which you bought your existing shares.
  • Quantity You Want to Buy
    The number of new shares you plan to purchase.
  • Current Price (Buy Price Now)
    The current price per share for your new purchase.

2. Main Output:

  • 🟦 New Average Price
    Displayed prominently at the top — shows your updated cost per share after the new purchase.

3. Detailed Portfolio Info:

  • 💰 Current Average
    Your current average price before the new buy.
  • 📈 Current Total Value
    The total investment value of your existing shares.
  • 📊 After Buy Total Value
    The total investment value after the new purchase (existing + new).

All amounts are shown in comma-separated ₹ (INR) currency format for better readability.

📱 Responsive Design:

  • Fully responsive and optimized for mobile, tablet, and desktop views using flexbox and media queries.
  • On smaller screens, components stack vertically for a smooth mobile experience.

🛠️ Built With:

  • HTML5 – Form and layout structure
  • CSS3 – Responsive and modern UI design
  • Vanilla JavaScript – Real-time calculation and currency formatting

📌 Example Use Case:

You own 100 shares at ₹111. You want to buy 1000 more at ₹42.
The app calculates and tells you:

  • 🎯 New Average: ₹48.27
  • 💼 Your total portfolio value now: ₹53,100.00

🧠 Who Is This For?

  • Retail Investors
  • Stock Market Beginners
  • Day Traders
  • Long-Term Portfolio Holders
  • Anyone wanting to track and optimize their stock entry prices

🔒 Privacy Friendly:

  • No login required
  • No data stored
  • Runs entirely in your browser (client-side only)

🚀 Future Enhancements (Optional Ideas):

  • Export results to PDF/CSV
  • Add multiple stock entries
  • Show profit/loss projection
  • Support for foreign currencies
  • Dark mode toggle 🌙

Now you Can Buy Stocks –

Groww
Upstox