GOALS, RETURNS, AND HOUSEHOLD RESERVES
Calculate total shares, total cost, and weighted average purchase price across two stock or fund transactions.
Your result
Enter your values and choose Calculate. Your inputs stay on this device.
Average price = (quantity 1 × price 1 + quantity 2 × price 2) ÷ total quantity.
Brokerage, taxes, charges, corporate actions, partial sales, and realised gains or losses are excluded.
This weighted-average tool shows how a second purchase changes the cost basis without implying that averaging down is a good strategy.
Calculate weighted average purchase price without implying that buying or averaging down is suitable.
Build a reliable scenario
Stock Average Calculator helps you check a specific investing & savings question with figures that apply to you. Calculate total shares, total cost, and weighted average purchase price across two stock or fund transactions. Calculate weighted average purchase price without implying that buying or averaging down is suitable. The page keeps the method and limits visible so the result can be understood, compared, and checked instead of treated as an unexplained answer.
Prepare First purchase quantity, First purchase price, Second purchase quantity and Second purchase price. Review the formula and assumptions shown for this stock average calculator. Enter quantity and executed price for both purchases. Calculate and review total cost and weighted average price. Use broker contract notes for tax cost basis and do not treat the result as a buy recommendation. Keep units, dates, currency, and time periods consistent.
The stated method is: Average price = (quantity 1 × price 1 + quantity 2 × price 2) ÷ total quantity. Change one assumption at a time to see which input drives the result, then compare scenarios on the same basis.
Brokerage, taxes, charges, corporate actions, partial sales, and realised gains or losses are excluded. Illustrative planning scenario only. Returns, inflation, rates, taxes, charges, and scheme rules can change; this is not investment advice.
Source and update
Last reviewed: 2026-08-22
SEBI Investor — calculators and investor educationThis weighted-average tool shows how a second purchase changes the cost basis without implying that averaging down is a good strategy.
Review total cost and weighted average price. The result changes whenever an input or assumption changes.
Use broker contract notes for tax cost basis and do not treat the result as a buy recommendation.
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