Sign in to continue:

Tuesday, February 17th, 2026

Stock Average Price Calculator

Average Stock Price Calculator – Track Your Investments and Cost Basis Online

Looking for a fast, accurate way to calculate your average stock price? Our online cost basis calculator makes it easy to enter multiple stock purchases with their price and quantity, then instantly calculates your total shares, total investment cost, and average price per share. This is perfect for traders, long-term investors, and anyone who needs a reliable stock investment calculator without the hassle of spreadsheets.

Whether you’re calculating the average price of shares bought at different times or trying to track your portfolio performance, this tool helps you understand your real investment cost basis. With the simple “Add Row” feature, you can enter as many trades as you want — whether it’s two purchases or hundreds over years of investing.

Start tracking your average share price today and gain better insight into your stock market investments.

Average Cost Calculator

Enter each lot’s Price and Qty. Add more rows as needed.

Table for entering stock purchase lots
Price Qty Cost Actions
Total Qty: 0.0000
Total Cost: $0.00
Average Price: $0.0000