Calculator
Entry price, share count, fees, and optionally an exit price. Out comes your profit or loss, the return in percent, and the exit price that gets you back to exactly flat after costs.
Formulas: cost = entry × shares × (1 + fee); proceeds = exit × shares × (1 − fee); break-even = entry × (1 + fee) ÷ (1 − fee). With zero fees, break-even equals entry.
With fees on both sides, the price that makes you whole sits slightly above your entry. Buy at $100 with 0.1% each way and break-even lands at $100.20, because you paid a dime extra on the way in and will surrender a dime on the way out. Small numbers, but they explain the puzzled feeling of “the price is back where I bought and I am still down”. On the Binance stock desk the commission line was zero at launch, so for pure stock trades the fee box can stay at zero and break-even equals entry; the box exists for people who count their stablecoin conversion cost as part of the trade, which is the honest way to book it. The full cost picture lives in the fee guide.
Pair this with the position size calculator before entry, and with the market hours guide if your exit plan assumes you can always trade the moment you want to.
If the math above says the trade makes sense, the account takes an evening to set up. The code below applies the fee discount from day one.
BNB6669
Create a Binance account
20% off trading fees with this code, applied at sign-up. Trading involves risk of loss. See our disclosure and risk disclaimer.