Position Size Calculator

Calculate the optimal number of contracts to trade based on your account risk tolerance.

Trade Parameters

Cost per contract = premium × 100 shares

How It Works

Risk Amount = Account Size × Risk %

Cost Per Contract = Premium × 100 shares

Contracts = Floor(Risk Amount ÷ Cost Per Contract)

Break-Even (Call) = Strike + Premium

Break-Even (Put) = Strike − Premium

Risk Disclaimer

This calculator is provided for educational and informational purposes only and does not constitute financial, investment, or trading advice. Trading options involves substantial risk of loss and may not be suitable for all investors. Past performance is not indicative of future results. The calculations generated by this tool are based solely on the inputs you provide and do not account for commissions, slippage, taxes, liquidity, volatility, time decay (theta), implied volatility changes, or other market factors that may affect actual trade outcomes. You should always conduct your own due diligence and consult with a licensed financial advisor before making any investment decisions. OptionBots is not responsible for any losses incurred as a result of using this tool.

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