About this calculator
Enter up to six purchases with their quantity and price, and the current market price if you want to see profit or loss.
How to use it
- Enter the quantity and price of each purchase.
- Optionally enter the current market price.
- Read the average price and profit or loss.
The formula
- quantity
- shares bought in each purchase
- price
- the price paid in that purchase
Worked example
Three purchases of the same share
- 50 at ₹1,200, 30 at ₹1,050 and 20 at ₹980: total cost ₹1,11,100 for 100 shares.
- Average = 1,11,100 ÷ 100 = ₹1,111.
- At ₹1,100 the holding is worth ₹1,10,000, an unrealised loss of ₹1,100.
What the result means
Buying more when the price falls lowers your average, which is called averaging down. It only helps if the share recovers, so do it for a reason, not only to lower the average.
Assumptions
- Purchases are of the same share.
Limitations
- Brokerage, STT and other charges are not included.
- Sales are not handled; enter only shares you still hold.
Frequently asked questions
Is the average price the simple average of my buy prices?
No. Each price is weighted by how many shares you bought at it.
Does averaging down make sense?
It lowers your cost, but adds money to a falling share. Decide based on the company, not just the average.
Why is my broker’s average different?
Brokers may include charges or use a different method after partial sales.
For information only. This calculator gives estimates based on the figures you enter and the assumptions listed above. It is not financial advice. Actual amounts depend on the lender’s or institution’s terms, fees, rounding and rate changes. Please confirm with them before you decide.
Last reviewed on 1 October 2026. Found a mistake? Tell us.