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Trading Calculators
Calculate your new average price after buying more, and how many shares you need to reach a target average price.
Current holdings
Additional purchases (multiple entries allowed)
Assumes the additional shares are bought at the current price.
Enter your values and press Calculate
New average price
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Total shares held
Total purchase amount
Current return
How to use
Lowering your average price reduces the gain needed to break even, but your weight in the same stock, and your risk, grows too.
Enter your current average price, shares held and current price.
Enter the buy price and quantity for each round, or enter a target average price and work backwards to the quantity needed.
Along with the new average price, check the amount invested and how the gain needed to break even changes.
The target average price must be above the current price to be achievable. The closer the target is to the current price, the more sharply the required quantity grows. Fees and taxes are not included.
Averaging down means buying more when the price is below your average price in order to lower it; adding to winners (pyramiding) means buying more as the price rises. This calculator can compute the new average price in both cases.
When the target average price is close to the current price, the required quantity grows exponentially. Set a realistic target, or plan to split your purchases into several rounds within the amount you can invest.
If the company's fundamentals remain intact and you stay within your planned position size, it can be a way to manage your average price. But averaging down without checking why the stock fell can deepen your losses. Also check an appropriate position size with the Position Sizing Calculator.
Results are estimates based on your inputs and simplified assumptions, and are for reference only, not a basis for investment decisions.
Last updated: November 2, 2026
A -50% loss needs a +100% gain. See at a glance the gain required to break even for each loss rate.
Calculate the right number of shares for this trade from your acceptable loss relative to your account and your stop-loss price.
If you bought on margin, see in advance how far the price can fall before you hit a collateral shortfall and forced liquidation.