Trading risk disclaimer: This calculator is a planning tool, not investment advice or a recommendation to trade. Share counts and potential gains and losses are estimates based on the prices and limits you enter. A stop price does not guarantee an exit at that price; market gaps and fast moves can cause a larger loss. Results exclude commissions, fees, slippage, borrowing costs, and taxes. Short sales carry additional risks. Check the figures and your broker’s requirements before placing a trade.
Stock Position Sizer
Set the stop first. Then see how many whole shares fit your risk and cash limits.
Trade inputs
Position size
A stop price is a planning assumption. A stop order can fill at a different price, especially in a fast market or after a gap. This estimate excludes commissions, fees, borrowing costs, and slippage.
Prairie Light Press · Offline, single-file calculator. Inputs stay in this browser when local storage is available. Short sales also depend on your broker’s borrow and margin rules. Verify order details with your broker before trading.
