Enter the number of shares and the price for each purchase. You see your average price, the total you invested and your result at the current price.
Free and without an account. The calculation runs in your browser; what you enter is not stored anywhere.
Enter the current price to see your result. With a target average you see how many shares that would take.
Your average price is the total amount you paid divided by the number of shares you hold. Purchases with more shares weigh more heavily.
Transaction fees are part of it: they raise what you paid per share. Enter them with the purchase they belong to.
Buying below your average lowers the average price. The calculator shows how many shares that takes at the current price. It says nothing about whether buying more is wise.
Average price = (sum of shares × price + fees) ÷ total shares
For a target average: shares to buy = current shares × (average − target) ÷ (target − current price).
You buy 10 shares at 50 dollars and later 10 at 40 dollars. You paid 900 dollars for 20 shares: 45 dollars on average. If the price is 35 dollars and you want an average of 40 dollars, that takes 20 more shares, for 700 dollars.
Insiviz imports your transactions from DEGIRO, Trading 212, Interactive Brokers or Bitvavo and shows the return, dividends and costs of your whole portfolio in one place.
For each purchase multiply shares by price, add them up together with the fees, and divide the total by the total number of shares.
Yes. Fees paid on a purchase raise your cost basis and therefore your average. Brokers usually show the average price including fees as well.
Under the average cost method the average price of the shares you keep does not change when you sell. Only a new purchase moves the average.
Buying more at a price below your average, which lowers your average price. It does mean putting more money into the same position.
Yes. The calculation is the same for any investment; you can enter fractions of a share or coin as well.
This tool calculates with the assumptions you enter yourself. It is information and not investment advice.