Stock Average Calculator: Average Price After Averaging Down or Up
List each purchase as price and quantity, one per line. You get the average price, total shares and profit or loss at today's price.
- Nothing you type is stored
- Free
- No signup
Average buy price
₹1,052.50
- Total shares
- 200
- Amount invested
- ₹2,10,500
- P&L at current price
- −₹10,500
- P&L %
- −4.99%
An estimate for learning and planning, not investment advice. Trading in shares and F&O carries risk of loss.
Your buys
| Price | Shares | Amount |
|---|---|---|
| ₹1,200.00 | 50 | ₹60,000.00 |
| ₹1,050.00 | 50 | ₹52,500.00 |
| ₹980.00 | 100 | ₹98,000.00 |
How to use
- Type each buy on its own line as "price quantity", for example 1050 50.
- Enter the current market price to see your profit or loss.
- Under More options, enter a target average and the next buy price to see how many shares you need.
Good to know
Average price = total amount invested ÷ total shares. Buying 50 at ₹1,200, 50 at ₹1,050 and 100 at ₹980 costs ₹2,10,500 for 200 shares, an average of ₹1,052.50.
To reach a target average A by buying at price P, you need x = (amount invested − A × shares held) ÷ (A − P) more shares. Getting from ₹1,052.50 to ₹1,000 by buying at ₹950 needs 210 more shares, which means putting in another ₹1,99,500. The page tells you when a target cannot be reached at that price.
Averaging down lowers your break-even but also raises the amount at stake in a falling stock. Brokerage and charges are not included; your broker's average may include them. This is an estimate, not investment advice.
Questions
How do I calculate the average price of shares?
Add up price × quantity for every buy and divide by the total quantity.
How many shares should I buy to lower my average?
Enter your target average and the price you can buy at under More options. The calculator shows the number of shares needed.
Does selling some shares change the average?
No. Under the usual method selling reduces the quantity but not the average price of the remaining shares.
Why is my broker's average different?
Brokers may include charges, use FIFO for tax, or adjust for bonus and split. Enter adjusted prices for bonus or split shares.
Is averaging down a good idea?
It can lower your cost, but it also adds money to a losing position. That is your decision; this page only does the maths.