Stock Average Calculator

Calculate your stock averages fast. Simple, accurate, and built for investors like you.

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Tool Icon Stock Average Calculator

Stock Average Calculator

Calculate the average buy price of your stocks after multiple purchases

Primary Purchase Details
Enter your initial entry position details above
Second Purchase (Averaging Down/Up)
Calculation History:
No calculations saved yet
Investment Concepts:
Averaging Down

Buying shares as the price drops to lower your average cost.

DCA

Dollar-Cost Averaging: investing fixed amounts regularly.

Breakeven

The price where your investment neither gains nor loses money.

How to Use:
  1. Enter the stock symbol and your first purchase details.
  2. Add your second and/or third purchase quantities and prices.
  3. Click "Calculate Average Price" to see the weighted average.
  4. Use "Save" to keep track of different stock calculations in your history.

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About This Tool

So, you’ve bought the same stock at different prices and now you’re trying to figure out what your real average cost per share is? Yeah, I’ve been there. It’s not rocket science, but it’s easy to mess up if you just eyeball it. That’s where a stock average calculator comes in—simple, no-nonsense, and actually useful.

It takes the prices you paid, how many shares you bought each time, and spits out your true average cost basis. No fluff. No jargon. Just numbers that make sense. Whether you're averaging down after a dip or just tracking your buys, this tool keeps things honest.

Key Features

  • Handles multiple buy orders—no limit on entries (within reason, obviously).
  • Shows total shares and total amount invested, so you see the full picture.
  • Works with any stock, ETF, or crypto—doesn’t care what you’re buying.
  • Instant results. Type it in, hit calculate, done.
  • Free. No sign-up, no ads, no “premium version” nonsense.
  • Works offline if you save the page—great for when you’re at your broker’s office and the Wi-Fi’s spotty.

FAQ

Q: Why not just average the prices manually?
A: Because that’s wrong. If you buy 10 shares at $10 and 1 share at $20, your average isn’t $15. It’s closer to $10.91. The calculator weights each purchase by the number of shares—something your brain won’t do accurately.

Q: Does this track my portfolio over time?
A: Nope. It’s not a portfolio tracker. It’s just for calculating your average cost per share. If you want to see gains, losses, or performance over time, you’ll need something else. This tool sticks to one job and does it well.