iSolveTo ← Finance & Money
📈 Finance & Money · Tool #42

Stock Average Calculator

Calculate the weighted average purchase price when you buy the same stock at different prices.

Enter your stock purchases

Add the number of shares and purchase price for each transaction.

Currency selection changes only the displayed symbol. No exchange-rate conversion is performed.

Purchase 1

Shares purchased in this transaction.
Price paid per share.

Purchase 2

Purchase 3

Purchase 4

Purchase 5

Average Purchase Price = Total Investment ÷ Total Shares

Stock Average Estimate

Based on the purchase prices and share quantities you entered.

Average Purchase Price per Share ₹93.33
Total Shares 150.00
Total Investment ₹14,000.00
Weighted Average Your average is weighted by the number of shares purchased at each price.
Important This calculator uses the purchase quantities and prices you enter. Brokerage, taxes, transaction charges and other fees are not included unless you include them in the purchase cost yourself.

How the Stock Average Calculator Works

When the same stock is purchased at different prices, the average purchase price is calculated using a weighted average. Each purchase contributes to the total investment according to the number of shares bought.

Average Purchase Price = Σ (Shares × Purchase Price) ÷ Σ Shares

For example, buying 100 shares at 100 currency units and 50 shares at 80 currency units gives a total investment of 14,000 and 150 shares, producing an average purchase price of 93.33 currency units per share.

How to use this calculator

What to enter

Enter or select the following as requested: Currency — Display Only; Number of Shares; Purchase Price (); Average Price Formula. Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The average stock cost estimates the combined average purchase price or cost basis from the share quantities and prices entered. Confirm whether the tool accounts for fees, existing holdings, and any sale or split adjustments.

When to use it

Use this to estimate an average purchase cost across multiple buys. It is a calculation aid, not investment advice; verify records and the applicable tax cost-basis method.