Bought the same stock at different prices? Add each purchase below to get your exact average buy price, total quantity and total investment.
The formula is simple: average price = total investment ÷ total shares. Every purchase contributes its quantity × price to the total cost. The calculator updates live as you add tranches — use it before averaging down so you know the exact price your position needs to recover to.
A lower average feels good, but it doubles down on your thesis. Before adding, verify the fundamentals haven’t changed: earnings trend, debt levels, promoter pledging and institutional holding. VestAI’s free stock pages show all of this for 2,600+ NSE stocks, including an AI signal that combines fundamentals and technicals.
Average price = total amount invested ÷ total shares held. For example, 100 shares at ₹250 plus 50 shares at ₹200 means ₹35,000 invested for 150 shares — an average of ₹233.33 per share. The calculator handles any number of purchases.
Averaging down lowers your average cost but increases your exposure to a falling stock. It works when the business fundamentals are intact and the fall is sentiment-driven; it destroys capital when the fall reflects genuine deterioration. Check the fundamentals (debt, earnings trend, promoter pledging) before adding — never average down purely because the price dropped.
Averaging down means buying more as the price falls below your earlier buys, reducing average cost. Averaging up means adding as the price rises — your average cost increases, but you are adding to a winning position. Many professional traders prefer averaging up since the market is confirming their thesis.
Most Indian brokers show average price based on trade price only; charges (brokerage, STT, stamp duty) appear separately. Your effective breakeven is slightly higher than the displayed average — use our brokerage calculator to see total charges per trade.
Orion AI combines fundamentals (P/E, ROCE, ROE) and technicals (RSI, MACD, trend) into one clear signal for 2,600+ NSE stocks.
Browse stocks with AI analysis →This calculator is for education and information only — it is not investment, tax or financial advice. VestAI is not a SEBI-registered investment adviser. Verify all calculations independently before acting on them.