Position Size Calculator / Profit Calculator / Swap Calculator
A suite of three calculator utilities for MetaTrader 5: a Position Size Calculator that determines optimal lot size based on risk percentage and stop-loss distance, a Profit Calculator that estimates potential profit or loss at a target price, and a Swap Calculator that forecasts overnight swap charges for holding positions. These tools assist traders in pre-trade planning and risk assessment without executing any trades.
Open the interactive view (equity curve, symbol switch)Key facts
Backtest results (H1, about 1 year)
Not backtested yet — this EA could not be converted automatically.
Strategy analysis
This EA suite does not execute any trading strategy; it is a set of pure calculation utilities. The Position Size Calculator determines the recommended lot size based on a user-defined risk percentage (e.g., 1-2% of account equity) and stop-loss distance in points, ensuring each trade's risk is controllable. The Profit Calculator allows users to input a target price and calculates the profit or loss if the position were closed at that level, helping evaluate the risk-reward ratio. The Swap Calculator forecasts overnight holding costs based on the instrument's swap rate and position direction, aiding decisions on medium-to-long-term position holding viability. None of these three tools involve automated entry or exit logic, nor do they execute any order operations. Their core value lies in helping traders perform quantitative analysis before placing orders, enabling more rational trading decisions. The suite serves as a pre-trade analysis companion rather than an automated trading system.
Strengths
- Helps traders quantify risk before placing orders, preventing over-positioning
- Three calculators cover the key dimensions of trade planning: position sizing, profit/loss, and holding costs
- Pure utility nature with no trade execution eliminates risk of program errors causing financial loss
- Simple and intuitive operation suitable for both novice and experienced traders
- Significantly improves trading discipline by ensuring each trade's risk stays within predefined limits
Weaknesses
- Does not execute trades, so risk management depends entirely on the trader manually following calculated results
- Lacks deep integration with real-time market conditions such as current spread, slippage, and other execution factors
- No backtesting capability to validate trading strategies based on these calculations
- Lacks linkage between calculators; for example, position size results cannot be automatically passed to the profit calculator
- Interface may be rudimentary, missing graphical displays such as risk heat maps or P&L distribution charts
Possible improvements
- Add data linkage between calculators so position size results auto-populate into profit and swap calculators
- Integrate real-time market data (spread, slippage) to provide more realistic calculation results
Risk assessment
Overall risk: Safe
- Pure utility nature with no automated trading, but traders may over-rely on calculation results while neglecting actual market execution conditions
- Swap calculations are based on current swap rates which may change over time, making forecasts inaccurate
Evaluation scores
Parameters
| Parameter | Default | Description |
|---|---|---|
RiskPercentage | 1.0 | Risk percentage per trade (% of account equity) |
StopLossPips | 50 | Stop loss in points |
AccountCurrency | USD | Account currency type |
TargetPrice | 0 | Target close price (profit calculator) |
LotSize | 0.1 | Lot size (profit/swap calculator) |
PositionDirection | BUY | positiondirection (buy/sell) |
HoldingDays | 1 | Expected holding days (swap calculator) |
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Backtests are historical simulations and do not guarantee future results. Not financial advice.