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  5. Position SizePosition Size Calculator
Trading & Investing

Position Size Calculator

Calculate optimal position size based on account risk and stop loss.

Related toolsMore Trading & Investing tools

View all →
Stock ProfitDividendPortfolioPosition SizeRisk/RewardMarginOptionsCryptoStaking

Why beMyCalc

  • Trader toolsMargin, options, position size & P&L
  • Shareable linkSave trade scenario in the URL
  • Instant mathFast what-if on entry, stop & target
  • No signupNot pushing a trading platform

Results update instantly

Drag the sliders or tap the number boxes to change values. Results appear at the top on mobile.

Share & export

Download or share with your numbers saved in the link

Report an issue with this calculator

How Position Size Calculator Works

Shares = (Account × Risk%) / (Entry − Stop Loss). Limits loss to your risk tolerance.

Frequently Asked Questions

How much should I risk per trade?

Professional traders typically risk 1-2% of account per trade.

Disclaimer

  • This calculator gives you an estimate only. It is not a promise of exact results.
  • This is general information, not personal financial, tax, or legal advice.
  • You are responsible for your own decisions. Talk to a qualified professional when it matters.
  • Trading and investing involve risk. You can lose money.

Full site disclaimer

Related Calculators

Stock Profit CalculatorCalculate profit or loss on stock trades including return percentage.
Dividend CalculatorEstimate annual dividend income from your stock holdings.
Portfolio Return CalculatorCalculate overall portfolio return including contributions.
Risk/Reward CalculatorCalculate risk-to-reward ratio for trades using entry, stop loss, and target.
Margin CalculatorCalculate margin required and buying power with leverage.
Options Profit CalculatorCalculate profit or loss on call and put options at expiry.
$100$10.00M
%
0.5%10%
$0$100,000
$0$100

Shares to Buy

200

Position Value

$20,000

Amount at Risk

$1,000