Lot-Size Calculation Examples
Worked examples showing how to calculate position size step by step, bringing together account balance, risk percentage, stop-loss distance and pip value.
- 7 min read
- For beginners
- Educational
- Pelajaran 6 daripada 6
This final lesson brings together everything covered in this unit — account balance, risk percentage, stop-loss distance, and pip value — into complete, worked examples using the position sizing formula.
These are hypothetical examples for illustrative purposes only, using round numbers to clearly demonstrate the calculation method. They do not represent a recommendation for any specific account size, risk percentage, or trade.
The Formula Recap
As introduced at the start of this unit: Position Size (in lots) = (Account Balance × Risk Percentage) ÷ (Stop-Loss Distance in Pips × Pip Value per Lot).
Worked Example 1: A $10,000 Account
Suppose a hypothetical account balance is $10,000, with a chosen risk percentage of 1% ($100 monetary risk, as covered in the risk percentage lesson), a stop-loss distance of 50 pips on EUR/USD, and a standard lot pip value of approximately $10.
Position Size = $100 ÷ (50 pips × $10 per pip per standard lot) = $100 ÷ $500 = 0.2 standard lots (equivalent to 20,000 units, or 2 mini lots).
Worked Example 2: A Smaller Account
Suppose a hypothetical account balance is $1,000, with the same 1% risk ($10 monetary risk), the same 50-pip stop-loss distance, and the same approximate $10 standard lot pip value.
Position Size = $10 ÷ (50 pips × $10 per pip per standard lot) = $10 ÷ $500 = 0.02 standard lots (equivalent to 2,000 units, or 2 micro lots).
Worked Example 3: A Wider Stop-Loss Distance
Using the same $10,000 account and 1% risk ($100) as Example 1, but with a wider stop-loss distance of 100 pips instead of 50.
Position Size = $100 ÷ (100 pips × $10 per pip per standard lot) = $100 ÷ $1,000 = 0.1 standard lots — illustrating how a wider stop-loss distance results in a smaller position size for the same monetary risk amount, consistent with the position-size relationship covered earlier in this module.
Key Takeaways from These Examples
These examples illustrate how the same formula scales appropriately across different account sizes and stop-loss distances, always aiming to keep the monetary risk amount consistent with your chosen risk percentage. As emphasized throughout this Learning Hub, following this calculation process supports structured, consistent decision-making — it does not guarantee a profitable outcome, since all trading carries the risk of loss regardless of how carefully position size is calculated.
Summary
These worked examples demonstrate the position sizing formula in practice: a $10,000 account risking 1% with a 50-pip stop on EUR/USD results in approximately 0.2 standard lots, while a smaller account or wider stop-loss distance results in a proportionally smaller position size. These hypothetical, illustrative examples show how the formula consistently scales position size to match your chosen risk amount, though they do not guarantee any specific trading outcome.
Frequently Asked Questions
Using the standard formula, this results in approximately 0.2 standard lots (20,000 units), based on an approximate $10 pip value for a standard lot.
Risk Warning
Trading forex and CFDs involves significant risk and may not be suitable for all investors. You may lose all of your invested capital. Please ensure you fully understand the risks before trading.
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