Crypto Position Size Calculator
Calculate how much crypto to buy or short based on your account capital, risk tolerance, entry price and stop-loss — with optional leverage.
How This Calculator Works
This tool applies the same fixed-fractional risk model used by professional traders: it calculates the dollar amount you're willing to lose (account capital × risk %), then divides that by the distance between your entry and stop-loss price to tell you exactly how many units (coins/contracts) to buy or short. If you use leverage, the required margin is your total position value divided by your leverage multiple.
Sizing your position this way means a stopped-out trade always costs roughly the same percentage of your account, regardless of how volatile the asset or how tight your stop is — which is the core discipline behind sustainable risk management.
Frequently Asked Questions
How is this different from the Crypto Profit/Loss Calculator?
This tool tells you how big a position to open before you trade, based on your risk tolerance. The Crypto Profit/Loss Calculator tells you your actual result after a trade is closed.
Should I use the same risk % for crypto as forex?
Many traders risk slightly less per trade on crypto than forex, given crypto's typically higher volatility, but the right number depends on your own risk tolerance and strategy.
Does this account for exchange fees?
No — this calculates position size based on your risk amount and stop-loss distance only. Factor in your exchange's trading fees separately when evaluating a trade's overall profitability.
What if I don't use leverage?
Leave leverage at 1 — the calculator will then show your required margin as equal to your full position value, since you're trading with your own capital only.