Position size calculator
Position sizing answers one question: how many shares can I buy so that if my stop is hit, I only lose a fixed slice of my account? It's the core risk-management habit behind disciplined trading.
Results appear here.
Why 1%?
Risking roughly 1% per trade means ten straight losses costs about 10% of your account — painful but survivable. Risking 10% per trade means the same streak nearly wipes you out. The right number depends on your strategy and win rate; smaller is almost always safer.
Disclaimer: Educational tool only. Stops can slip or gap through their price in fast markets. Nothing here is investment advice.