Lot Size Calculator

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Calculator Input

Market
Stop Loss
Take Profit

Calculation Results

Margin Used
0.0%
Lot Size
0.00
R:R
-
(0.00 USD)
Risk Amount
0.00 USD
Potential Profit
0.00 USD
Pip Value
0.00/lot USD
Commission (per lot)
0.00 USD
Trade Summary
Trade: 0.00 lots LONG EURUSD with 1% risk at 1:100 leverage

What is a Lot Size Calculator?

A lot size calculator is a professional trading tool that determines the optimal position size for your trades based on your account balance, risk tolerance, and trade setup. It's essential for proper Risk Management and consistent trading success.

Our advanced calculator supports forex, cryptocurrency, and stock trading with multi-currency calculations, real-time R:R ratio analysis, and professional-grade position sizing algorithms used by institutional traders.

How to Calculate Lot Size: Step-by-Step Guide

Step-by-Step Process

  1. 1Set your account balance and choose your base currency
  2. 2Determine your risk percentage (typically 1-2% per trade)
  3. 3Choose your trading symbol (forex pair, crypto, or stock)
  4. 4Set your stop loss level (in pips or price)
  5. 5Enter your take profit target for R:R calculation

Risk Management Formula

Lot Size = (Account Balance × Risk %) ÷ (Stop Loss Distance × Pip Value)

This formula ensures you never risk more than your predetermined percentage on any single trade, protecting your account from large losses while maximizing profit potential.

Frequently Asked Questions

How to calculate lot size in forex trading?

To calculate lot size in forex: 1) Determine your account balance and risk percentage, 2) Set your stop loss level, 3) Calculate the distance from entry to stop loss, 4) Use the formula: Lot Size = (Account Balance × Risk %) ÷ (Stop Loss Distance × Pip Value). Our calculator does this automatically with multi-currency support.

What is position sizing in trading?

Position sizing is determining how much capital to risk on each trade. It's calculated based on your account size, risk tolerance, and the specific trade setup. Proper position sizing is crucial for long-term trading success and risk management, typically risking 1-2% of your account per trade.

Is the lot size calculator free to use?

Yes, our lot size calculator is completely free to use. It supports multiple currencies, asset classes (forex, crypto, stocks), and provides professional-grade calculations for risk management and position sizing. No registration or payment required.

What's the difference between standard, mini, and micro lots?

Standard lot = 100,000 units, Mini lot = 10,000 units, Micro lot = 1,000 units. Our calculator automatically converts between these based on your inputs and shows the exact lot size needed for your risk parameters across all major forex pairs, cryptocurrencies, and CFDs.

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