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Stock Average Price Calculator

Find the average buy price across two purchases.

Last updated: 20 Aug 2026

Quick answer

Average price = (qty1 × price1 + qty2 × price2) ÷ (qty1 + qty2). For example, 10 shares at ₹100 and 20 at ₹80 average to ₹86.67. Enter both lots above to calculate.

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Find your average buy price across two purchases (useful when averaging down): average = (q1×p1 + q2×p2) ÷ (q1+q2).

How to calculate stock average price

  1. 1 Enter quantity and price of your first purchase.
  2. 2 Enter quantity and price of your second purchase.
  3. 3 We compute the weighted average price.

Frequently asked questions

How do I calculate average share price?
Multiply each lot's quantity by its price, add them, and divide by the total quantity.
What is averaging down?
Buying more of a stock at a lower price to reduce your average cost — it also increases your exposure.
Does this include brokerage?
No — add brokerage and charges separately for the true cost; see our brokerage calculator.

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