percentage risk lot calculator
Info
The percentage risk lot calculator is a Script for MetaTrader 5 that this script calculates the number of lots to trade based on a specified percentage of risk funds. the calculation ensures that the trade size aligns with the defined risk tolerance.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Script works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Scripts folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use percentage risk lot calculator
1. Installation: Move your script file into the MQL/Scripts directory and restart the platform.
2. Execution: Drag the script onto a chart; it will perform a one-time action, such as closing all open orders or clearing chart objects.
3. Editing: Use MetaEditor (F4) to modify code, click "Compile," and verify no errors appear in the terminal before running.
4. Removing: Scripts stop automatically, but you can remove them manually by right-clicking the chart and choosing "Remove Script."
Frequently Asked Questions
Q: How are scripts different from EAs? A: Scripts execute a single action and then stop; EAs monitor the market and trade continuously.
Q: Can I assign a hotkey to a script? A: Yes, right-click the script in the Navigator, select "Set Hotkey," and define your preferred keyboard shortcut.
Q: Why did my script stop? A: Scripts are designed to stop immediately after finishing their programmed command; this is normal behavior.
What this tool does
this script calculates the number of lots to trade based on a specified percentage of risk funds.
Typical Use Case
This Script excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Script works on MetaTrader 5. Place the file in the MQL5/Scripts folder and restart the terminal.
Description & Settings
Related: Risk of Ruin Auditor for Trading Strategies - another powerful script for MetaTrader 5 traders.
this script calculates the number of lots to trade based on a specified percentage of risk funds.Also recommended: Position Size Calculator for Risk-Based Lot Sizing - similar script with strong performance on MetaTrader 5.
the calculation ensures that the trade size aligns with the defined risk tolerance.
this tool is designed for traders who prefer to manage risk by allocating a fixed percentage of their trading capital to each trade.
the script is compatible with metatrader 4 and metatrader 5 platforms.
it is intended for use from 2026 onwards.
You may also like: pro traders see ri s k as percentage - excellent alternative for script users on MetaTrader 5.
Source Code
#property copyright "robotfx"
#property link "https://robotfx.org"
#property version "1.00"
#property description "this code is educational. feel free to use, modify and upgrade as you wish. visit robotfx.org for professional trading tools"
#property description "this code is educational. feel free to use, modify and upgrade as you wish. visit robotfx.org for professional trading tools"
#property description "this code is educational. feel free to use, modify and upgrade as you wish. visit robotfx.org for professional trading tools"
#property description "this code is educational. feel free to use, modify and upgrade as you wish. visit robotfx.org for professional trading tools"
#property description "this code is educational. feel free to use, modify and upgrade as you wish. visit robotfx.org for professional trading tools"
#property script_show_inputs
input double risk=33.3;.......
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.