Stock average calculator
Find your average cost across multiple purchases.
Average cost per share / unit
For illustration only. Read the assumptions below for the full picture.
A closer look.
| Purchase | Quantity | Unit price | Cost before fees |
|---|---|---|---|
| Purchase 1 | 10 | ₹1,000 | ₹10,000 |
| Purchase 2 | 15 | ₹900 | ₹13,500 |
| Purchase 3 | 20 | ₹1,100 | ₹22,000 |
Understand your result.
Calculate average acquisition cost after multiple purchases of the same share or unit. Enter each quantity and INR price, plus any buy-side charges you want allocated across the holding.
Average acquisition cost helps understand the holding as a whole. It is not a replacement for tax-lot accounting or a recommendation to buy more.
A worked example.
Using this calculator’s default inputs, average cost per share / unit is ₹1,013.33. This is an illustration of the stated formula, not a forecast.
See the example inputs
| Purchases in INR | 10, 1000 15, 900 20, 1100 |
|---|---|
| Total purchase costs / charges | ₹100 |
| Current share price | ₹1,050 |
A common mistake to avoid
Using average cost instead of the applicable FIFO tax-lot method for an Indian capital-gains calculation.
Questions you might have.
Can I include purchase charges?
Yes. Enter their total in the charges field. Sale costs and taxes are excluded from the unrealised gain or loss.
Does it adjust for splits or bonus shares?
No. Adjust the purchase records appropriately before using them; corporate actions are not inferred.
Prepared by INDwise · Calculation checks: 29 October 2026 · How we check the maths · Report a correction
How we calculate it
Average acquisition cost = (Σ quantity × purchase price + entered buy-side charges) ÷ total quantity. Current gross value = total quantity × current price.
Assumptions & things to know
One security, same share class. Price data is entered manually. Fractional units can be used for eligible instruments. Excludes corporate actions, sales, exit charges and capital-gains tax. Average cost is not a replacement for FIFO tax-lot accounting in India.
Your privacy & sharing
Your financial inputs are used only within this page. Saved calculators use this browser’s local storage. Sharing creates a link with the entered values, so anyone with that link can see those values. A downloaded summary stays on your device.