Position Size Calculator
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Position size = (balance × risk %) ÷ distance to stop-loss. With a $5,000 account risking 1% and a stop 4% away, you risk $50 and open a $1,250 position — leverage only changes the margin you post, not the risk.
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Frequently asked questions
What risk percentage should I use?
Most professional frameworks use 0.5%–2% of account balance per trade. At 1% risk you need roughly 100 consecutive losers to blow up; at 10% risk it takes about 10.
Where does leverage come into position sizing?
Leverage decides how much margin you must post for the calculated position, not how big the position should be. Size from your stop distance first, then pick a leverage that comfortably supports it.
Why size from the stop-loss distance?
Because your real risk is entry-to-stop, not the whole position. A tight 1% stop lets you trade 4x the size of a 4% stop at identical dollar risk.
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