Crypto Position Size Calculator

Position size is the one risk decision that is completely in your control. You cannot choose whether a trade wins, but you can choose how much a loss will cost. Sizing by risk, instead of by feel, is how you make that decision before the trade rather than after it.

The method is simple. Decide what share of your account you will accept losing on a trade. Find the distance between your entry price and your stop-loss. Divide the amount you will risk by that distance, and you have the position size in units. A wider stop means a smaller position, and a tighter stop allows a larger one, for the same amount at risk.

Many people do it the other way round. They pick a position that feels right, place a stop wherever it looks sensible, and only then find out what a loss would cost. That is how a trade that looked small ends up taking a bigger bite than planned.

The calculator does the arithmetic and also shows the position value compared with your balance, which tells you whether the trade needs leverage. To see how your real position sizes behave, for example whether they grow after losses, read why traders increase size after a loss and check your own history.