How the average entry price works
Your average entry is not the average of the prices you paid — it is weighted by how much you bought at each one. Buying 0.01 BTC at $60,000 and 1 BTC at $40,000 does not put your average at $50,000. It puts it near $40,200, because almost all of your money went in at the lower price.
total spent = (price₁×qty₁) + (price₂×qty₂) + …
total coins = qty₁ + qty₂ + …
A worked example
| Order | Price | Amount | Spent |
|---|---|---|---|
| 1 | $60,000 | 0.10 | $6,000 |
| 2 | $48,000 | 0.15 | $7,200 |
| 3 | $39,000 | 0.25 | $9,750 |
Total spent is $22,950 for 0.5 coins, so the average entry is $45,900 — well below the $49,000 you would get by averaging the three prices on their own.
What averaging down really costs
Buying more of a falling asset lowers your average and shortens the climb back to break-even. That is the appeal. The catch is that it also puts more money into a position that is already losing, which is exactly the wrong move if the fall was caused by something real rather than by noise.
Before you add to a loser, it is worth separating two questions that feel like one: has the price dropped, and has the reason you bought changed? Only the second one should decide whether you buy more.
- Cap your total exposure first. Decide the maximum you will ever hold in one coin before the first buy, not after the third.
- Space the entries. Adding at every 5% dip burns through your budget in a shallow correction and leaves nothing for a deep one.
- Watch the concentration. Averaging down quietly turns a diversified portfolio into a single large bet.
Averaging down versus dollar-cost averaging
They are easy to confuse. Averaging down is a reaction — you buy because the price fell. Dollar-cost averaging is a schedule — you buy on a fixed date regardless of price. The first depends on your judgement of a falling market, the second deliberately removes that judgement. If you want to model the scheduled version instead, use the DCA calculator.
Common questions
How do I calculate my average crypto buy price?
Add up everything you spent across all your buys, then divide by the total number of coins you received. The result is weighted by order size, not a simple average of the prices.
Does averaging down actually work?
It lowers your break-even price, which shortens the recovery you need. It also increases the money at risk in one position. It works when the fall is temporary and hurts badly when it is not.
Should fees be included in my average entry?
For an accurate cost basis, yes — add the fee to each order's cost. This calculator uses raw order prices, so add roughly your fee percentage to the result if you want the exact figure.
How many buys can I enter?
Four. If you have more, group the smallest ones together at their own average price and enter them as a single line.
Is average entry price the same as cost basis?
Effectively yes for a single asset — cost basis is the accounting term for the total you paid, and average entry is that total divided by the units you hold.