Risk · Core

Position Size Calculator

Connect account size, risk percentage, entry and stop distance to an educational position-size estimate.

03 · RISK CONTROL

Position Size

How to use it: Enter your account value, the percentage you are willing to risk, your planned buy price and your stop price. It estimates how many shares keep the possible loss near your chosen limit. Example: 1% of a $25,000 account is $250; with $3 at risk per share, the estimate is 83 shares.

Estimated position size83 shares
Capital at risk$250.00
Position value$4,150.00

What this result meansThe share estimate keeps the modeled loss near the risk budget if the stop fills as entered. Gaps and slippage can increase the actual loss.

How to use this calculator

Connect account size, risk percentage, entry and stop distance to an educational position-size estimate. Change one assumption at a time, compare the result and consider what the formula leaves out.

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Formula and assumptions

Shares = risk budget ÷ risk per share. Results are simplified illustrations and may exclude taxes, changing rates, liquidity, spreads, market impact, assignment, broker rules or other real-world factors.

Common questions

Does this calculator use live market data?

No. Every value comes from the assumptions you enter. A ticker symbol, when shown, is only a label.

Can I make a trade based on this result?

The result is an educational illustration, not a recommendation or a complete analysis. Verify current facts, account rules, costs and risks independently.

Why might the actual result be different?

Real outcomes can be affected by execution price, spread, slippage, fees, taxes, liquidity, volatility, financing costs, corporate actions and changing market conditions.

Educational illustration only. This calculator does not use live market data and does not provide investment, trading, tax or legal advice. Verify formulas, rules, fees and product details with current primary sources and regulated providers before acting.