Stock Average Calculator

Rs
Rs
Finance

The Stock Average Calculator finds your average purchase price across two buys of the same stock, weighting by the number of shares. Enter the shares and price for each purchase.

Formula

Average Price = (Q1×P1 + Q2×P2) ÷ (Q1 + Q2)
  • This weights each price by the number of shares bought, giving your true cost basis.
  • Averaging down lowers your average when you buy more at a lower price.

100 @ Rs 50 and 150 @ Rs 40

Inputs
  • Shares (Buy 1): 100
  • Price (Buy 1): 50 Rs
  • Shares (Buy 2): 150
  • Price (Buy 2): 40 Rs

(100×50 + 150×40) ÷ 250 = 11,000 ÷ 250 = Rs 44 per share.

Frequently asked questions

What is stock averaging?
It is your weighted average cost per share across multiple buys. Buying more at a lower price reduces your average cost.