Average entry price calculator
Bought in several parts? Enter each buy to get your average price, the result at today's price and what it takes to move the average.
How it's calculated
- Average price = total cost ÷ total quantity = Σ(price × quantity) ÷ Σ quantity. 2 at 100 and 1 at 50: (200 + 50) ÷ 3 = 83.33.
- If you enter amounts spent, quantity = amount ÷ price. $100 at 100 and $100 at 50 buy 1 + 2 = 3 units, average 66.67.
- Profit or loss = (current price − average) × total quantity.
- Quantity for a target average = Q × (A − T) ÷ (T − P), where Q and A are your current quantity and average, P the next buy price and T the target. Average 100 on 1 unit, buying at 80 for a target of 90: 1 × 10 ÷ 10 = 1.
Questions
Are fees included in the average price?
Only if you include them. Enter the amount spent including fees, or adjust the price, to get an average that reflects your real cost.
Why can't I reach some target averages?
A new buy can only pull the average towards its own price. The target must lie between your current average and the next buy price; otherwise no quantity reaches it.
Does averaging down reduce risk?
It lowers the average price but increases the position, so a further fall costs more. The calculator shows the numbers; whether to add to a position is your decision.
Does the order of buys matter?
No. The average depends only on the prices and quantities, not on the order in which you bought.