Simple Position Size Calculator
Accurate Position Sizing Made Simple
Welcome to the Simple Position Size Calculator. This tool is designed to help traders calculate their lot sizes instantly based on their risk tolerance.
How to use:
- Risk: Enter your account balance and select margin currency (important for conversions) then input your risk tolerance in %.
- Trade Parameters: Select the appropriate contract size based on your broker's specifications, select your leverage (required for accurate margin calculations) and enter your commission per lot (required for accurate fee deductions).
- Asset Selection: Select your asset from the pre-populated dropdown list, where the latest live price will automatically fill an appropriate entry, stop loss and take profit. Custom Symbol can also be selected where you can input your ticker and the site will attempt to find a price.
- Trade Parameters: Adjust your entry price, stop loss and take profit to the correct levels as per your trade plan.
- Calculate: Click the calculate button to generate your position size.
Advanced Features:
Scaled Entries: If you have multiple entries for a position, click the Scaled Entry Calc tick box, where the calculator will allow for up to 3 entry price levels with % splits. The calculator then uses your Entry Price (Average) to calculate your position size.
Partial Take Profits: If you have multiple take profit levels for a position, click the Partial TP Calc tick box, where the calculator will allow for up to 3 take profit levels with % splits. The calculator then updates the position size graphic to include your multiple take profit levels on the risk:reward graphic and potential profit at each of the levels based on the % split.
Adjusted Stop Loss: If you have or want to simulate adjusting your stoploss, click the SL Adj Calc tick box, where your original stoploss will grey out and a new adjusted stop loss input box will appear. Once completed, the risk:reward graphic will input a yellow adjusted stop loss line marker on the risk:reward graphic and detail your return if the adjusted stop loss is triggered.
Why use this?
Traders fail by risking inconsistent, excessive amounts driven by emotion.
A position size calculator enforces mathematical discipline, aligning trade size with your stop-loss. This ensures you never risk more than a predefined percentage (e.g., 1%), protecting your capital from ruinous losses regardless of volatility.
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