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This risk management tool for MetaTrader 4 and 5 calculates optimal lot sizes based on user-defined risk parameters, account balance, and currency. It provides a graphical user interface for setting entry, stop loss, and take profit levels visually on the chart. The expert advisor accounts for commissions, swaps, and m
Utility · MT5
MT5 Position Sizer
This utility for MetaTrader 5 provides an interactive on-chart panel for manual trade execution and risk management.
GitHub stars1
Forks0
Last update2 months ago5 Jul 2026
LicenceNone stated
Overview
MT5 Position Sizer enables traders to calculate optimal lot sizes based on a specific percentage of account balance or a fixed cash amount. The interface features draggable lines for entry, stop loss, and take profit levels, updating trade metrics and risk-to-reward ratios in real-time. It supports market, limit, and stop orders with a toggle for trade direction. The tool includes features to minimize the panel and hide visual lines to maintain chart clarity.
- Draggable Entry Stop Loss and Take Profit lines
- Percentage or fixed cash risk calculation
- Real-time lot sizing based on account balance
- Support for market limit and stop orders
- Dynamic risk-to-reward ratio display
Details
Author
Alfacentauree on GitHub
Type
Utility
Platform
MetaTrader 5 (MQL5)
Markets
Any symbol
Timeframes
Any timeframe
Risk profile
No grid, martingale or hedging logic was found in its code or README. That says nothing about how it performs: backtest it first.
EA files
Input parameters
Read from MT5_PositionSizer.mq5. Defaults are the author's; change them in the EA's Inputs tab.
| Name | Type | Default | Description |
|---|---|---|---|
MagicNumberInput | ulong | 123456 | Magic Number |
RiskModeInput | ENUM_RISK_MODE | RISK_PERCENT | Default Risk Mode |
RiskValueInput | double | 1.0 | Default Risk Value (e.g. 1.0% or 100.0 Cash) |
SLPointsInput | int | 200 | Default SL (in Points) |
TPPointsInput | int | 400 | Default TP (in Points) |
SlippageInput | int | 3 | Slippage (in Points) |
How to install it
- 1Download the sourceUse "Download source (.zip)" above, or clone Alfacentauree/MT5_PositionSizer from GitHub, and unzip it.
- 2Open the data folderIn MetaTrader choose File, then Open Data Folder, and go to MQL5/Experts.
- 3Copy the filesCopy the .mq5 file into Experts.
- 4Compile in MetaEditorOpen the file in MetaEditor and press Compile. Fix any missing includes the compiler reports.
- 5Test before you tradeRun it in the Strategy Tester, then attach it to a demo chart and allow algorithmic trading.
Third-party code. ForexR did not write, test or endorse this EA, and the summary above was generated automatically from its README and code. ForexR lists only repositories with readable source code and never hosts files. Read the code, backtest it and use a demo account first; automated trading can lose money quickly.
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