Stock Position Size Calculator | Manage Risk

Position Size Calculator

Protect your portfolio by calculating the precise number of shares to trade to strictly adhere to your risk management strategy.

Trade Direction

Long (Buy)

Short (Sell)

Account Parameters

Total Account Size ($)

Max Risk Per Trade (%)

Pro standard is 1% to 2%

Execution Levels

Entry Price ($)

Stop Loss Price ($)

Your hard exit level

Take Profit Target ($)

Where you secure gains

Exact Position Size

0 Shares

Select direction and set levels.

Capital Exposure & Margin

Capital Required (Position Value) $0

Capital at Risk (Max Loss) -$0

Leverage Ratio 1.00x

Risk to Reward Matrix

1 : 0.00

Potential Profit +$0

How this works: Amateurs blow up their portfolios by trading based on how much cash they want to deploy. Professionals survive by calculating exactly how much they are mathematically allowed to lose. This engine forces absolute risk discipline. Toggle your direction (Long or Short), lock in your maximum portfolio risk, and let the algorithm dictate your precise share sizing. Crucially, the built-in Leverage Matrix tracks your Total Capital Required, instantly warning you if a position forces your account into dangerous margin territory.