n Calculate Lot by Percent
Info
The n Calculate Lot by Percent is a Library for MetaTrader 5 that module of lot calculation by risk percentage purpose: automatically calculates the size of a trading position (lot) so that the potential loss when a stop loss is triggered is a specified percentage of your deposit. This is the basis of competent money management.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Library works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Libraries folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use n Calculate Lot by Percent
1. Storage: Place library files in the MQL/Libraries directory to ensure they are accessible to your projects.
2. Implementation: Include the library in your code using the #import directive, ensuring you match the exact function names and parameters.
3. Compilation: Ensure the library is present in the directory before you compile your main EA or script, as the compiler links them during this phase.
4. Management: Keep libraries organized in sub-folders if you manage many custom functions to maintain a clean project structure.
Frequently Asked Questions
Q: What is a library file used for? A: Libraries store reusable code modules, allowing you to centralize common logic used by multiple EAs or indicators.
Q: Is a library executable? A: No, libraries are non-executable files containing functions; they must be imported into an EA, indicator, or script to function.
Q: Can I update a library while the platform is running? A: You should compile your EA or script after updating a library to ensure the latest code changes are integrated.
What this tool does
Module of lot calculation by risk percentage Purpose: Automatically calculates the size of a trading position (lot) so that the potential loss when a stop loss is triggered is a specified percentage of your deposit.
Typical Use Case
This Library excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Library works on MetaTrader 5. Place the file in the MQL5/Libraries folder and restart the terminal.
Description & Settings
Related: Calculate Lot Percent - another powerful library for MetaTrader 5 traders.
Module of lot calculation by risk percentage Purpose:Automatically calculates the size of a trading position (lot) so that the potential loss when a stop loss is triggered is a specified percentage of your deposit. This is the basis of competent money management.
Also recommended: Class Calc Frac - Number of bars before and after the current High / Low (calculated fractal) - similar library with strong performance on MetaTrader 5.
How it works:You set:risk percentage (for example, 2%) and stop loss price.
The function calculateshow much you can trade for to lose no more than 2% of your account if the price reaches the stop.
The function translates this amount into lots, taking into account the specification of the instrument at your broker.
Key features:
Smart logic: automatically applies the correct formula for pairs like EURUSD and USDJPY .
Checks: monitors correct prices, minimum and maximum lots.
Ready to use: one function call returns the lot to be sent to the market order.
Example of use in the code:
Bottom line: this code gets rid of manual calculations and helps you maintain risk discipline in every trade. Simply plug it into your EA or script.
You may also like: Сode that records balance and equity charts and calculates additional optimization criteria - excellent alternative for library users on MetaTrader 5.
⚠ 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.