Forex Risk Management & Lot Size Calculator
About This Calculator
This forex risk management & lot size calculator helps you move from raw inputs to a decision-ready output in seconds.
Calculate optimal forex position size based on your account balance, risk percentage, and stop-loss distance, plus your monetary risk per trade.
If your workflow expands, pair this calculator with Percentage Change Calculator and Break-Even Point Calculator to cross-check assumptions and build a stronger analysis chain.
Formula
risk_amount = account_balance * risk_percent; position_size_lots = (account_balance * risk_percent) / (stop_loss_pips * pip_value_per_lot).
Example Calculation
The worked example below demonstrates how the input fields translate into the final output. Use it as a quick validation pass before entering your own numbers.
- accountBalance: 10000
- riskPercent: 1
- stopLossPips: 50
- pipValuePerLot: 10
Explanation of Results
Result Interpretation
Risking 1% of a 10,000 account with a 50-pip stop and 10 per pip per standard lot gives a position size of 0.2 standard lots and a 100 risk if the stop is hit.
FAQ
How do I find the correct pip value for my pair?
Use the pip value for your specific pair, account currency, and contract size, then enter that value directly as an input.
Should I always use 1% risk per trade?
1% is a common risk-control reference point, but risk tolerance should be set by your own strategy and account constraints.
Does this calculator account for slippage or commissions?
No. It computes position size from stop distance and pip value only; execution costs should be considered separately.
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