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Forex Position Size Calculator: formulas and examples - Position Size Calculator for MT4 MT5

by Bogdan Ulmu

Updated 24 Feb 2025

Forex Position Size Calculator: formulas and examples - Position Size Calculator for MT4 MT5

The Position Size Calculator is an essential tool for Forex traders. It streamlines risk management by accurately determining the optimal trade size. It converts complex variables into actionable insights by factoring in account equity, risk tolerance, stop loss, and specific trading instruments. This calculator empowers traders to enhance precision, control risk, and maximise profitability across diverse markets.

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Understanding the Crucial Role of a Position Size Calculator in Risk Management

The Position Size Calculator is a practical trading tool that equips you to determine the appropriate amount of currency units to buy or sell based on the risk level you're comfortable with for each trade. It incorporates several key inputs: your account equity, the risk percentage, the stop loss in pips, and the currency pair being traded.

 

Lot size calculator

Moment in the life of any aspiring astronomer that it is time to buy that first.

 

The Forex calculator uses these inputs to compute the risk in monetary terms (Risk Amount = Trading Account Equity * Risk Percentage). It then calculates the value of a pip for the specific currency pair (Pip Value = Pip Size * Contract Size) and, finally, determines the ideal position size. The position size is calculated by dividing the monetary risk amount by the product of the number of pips at risk and the pip value (Position Size in Lots = Risk Amount / (Stop Loss in pips * Pip Value)). This calculation ensures that the trader only risks the specified percentage of their account on a single trade, aligning with their overall risk management strategy.

 

🔎 Broker 🔥Spread Rebate Cashback 💰 Sign Up 📅 Monthly or Daily Cashbacks 🚩 Forex Rebates
🥇Exness Up to 30% Commission 👉 Click Here Daily ☑️ Yes
🥈AvaTrade Up to 30% Commission 👉 Click Here Monthly ✅ Yes
🥉 HF Markets Up to $6.80 per lot 👉 Open Account Daily ✅ Yes
🏅 Tickmill Up to $9 per lot 👉 Click Here Monthly ☑️ Yes
📌 XM Up to $13.95 per Lot 👉 Click Here Daily ✅ Yes
📍 RoboForex Up to 48% Commission 👉 Click Here Monthly ☑️ Yes
🏅 IC Markets Up to 38% Commission 👉 Click Here Monthly ✅ Yes
📌 Oanda $1 per Lot per 100 K USD 👉 Click Here Monthly ☑️ Yes
📍 Pepperstone Up to 12.85% Commission 👉 Click Here Monthly ✅ Yes
🏅 ThinkMarkets Up to $4.51 per Lot 👉 Click Here Monthly ☑️ Yes

 

10 Best Forex Brokers Cashback Rebate Programs (2025)

 

  1. Exness – Best Forex Rebate of Up to 30% for new and existing Traders
  2. AvaTrade – Overall, Best Rebate Program up to 30% commission
  3. HF Markets – Most Profitable Rebate Conditions
  4. Tickmill – Rebate per Trading Volume
  5. XM – Highest Rebate Rate for 2025
  6. RoboForex – Best ECN forex brokers with Rebate
  7. IC Markets – Exclusive Discount Rebate Service
  8. Oanda – Advanced Trader Account with Rebate Offer
  9. Pepperstone –  Active Trader program
  10. ThinkMarkets – Suited for High-Volume Traders

 

 

 

 

🔎 Broker 🥇 Exness
📝 Regulation Multiple
💻 Trading Desk Market Maker, NDD
🎉 Sign Up Bonus None
➖ Min. Deposit from $10 USD
🔁 Spreads from 0.1 Pips
➕ Max Leverage 1:2000
💳 Commission Yes
🛑 Inactivity Fee No
🚀 Open an Account 👉 Click Here

 

 

🔎 Range of Markets 🥇 Standard 🥈 Standard Cent 🥉 Raw Spread 🏅 Zero
📈 Forex 30% of the Spread 30% of the Spread Up to $160 per lot Up to $160 per lot
📊 Oil / Energies 30% of the Spread n/a Up to $26 per lot Up to $26 per lot
⚙️ Metals 30% of the Spread 30% of the Spread Up to $26 per lot Up to $26 per lot
📉 Shares / Equities n/a n/a Up to $14.40 per lot Up to $14.40 per lot
📌 Indices 30% of the Spread n/a Up to $4.40 per lot Up to $4.40 per lot
🪙 Cryptocurrencies 30% of the Spread n/a Up to $14.40 per lot Up to $14.40 per lot
💰 Payments Options Direct to Broker Account (Daily) Direct to Broker Account (Daily) Monthly Cash Back Monthly Cash Back
💵 Get Cash Back 👉 Click Here 👉 Click Here 👉 Click Here 👉 Click Here

 

💰 Get Cash Back 👉 Click Here

 

✅ Pros ❌ Cons
Exness is well-regulated and keeps all client funds in segregated accounts with top-tier institutions There is a limited portfolio of financial instruments offered
Traders can choose between several retail investor accounts Exness offers a limited number of payment methods that can be used for deposits and withdrawals

 

🔎 Broker IC Markets Global
📌 Regulation Regulated by Raw Trading Ltd under the Seychelles Financial Services Authority (FSA)
☪️ Islamic account (swap‑free) Yes
📒 Demo Account Yes
💰 Bonus No bonus offered
✴️ Institutional Accounts Not offered
👨🏼‍💼 Managed Accounts Not offered
📈 Maximum Leverage 1:500
💰 Minimum Deposit Varies by account type (see account registration for details)
📌 PAMM Accounts Not offered
💹 Margin Call Not specified
⛔ Stop‑Out Not specified
💷 Minimum Commission per Trade Standard: Commission‑free; Raw Spread: From $3 to $3.5 per trade
🪙 Crypto trading offered Yes
🔒 Segregated Accounts Yes
👥 Account Types Standard, Raw Spread, Islamic
🖥️ Trading Platforms MetaTrader 4, MetaTrader 5, cTrader, WebTrader, TradingView, IC Markets Raw Spread Platform
📙 Educational Resources Webinars, market analysis, educational materials
☎️ Customer Service Hours 24/7 multilingual support
🔘 Tradeable Instruments Forex, CFDs on indices, shares, commodities, cryptocurrencies, bonds, and futures
📍 Focus Raw spreads, deep liquidity, advanced trading tools
📌 Important Note CFDs are complex instruments and carry a high risk of losing money rapidly due to leverage
🚀 Open an Account Click Here

 

 

Eurotrader

🔎 Broker EuroTrader
📌 Regulation Regulated by:
- Eurotrade International Ltd, registered in Mauritius and authorized & regulated by the Mauritius Financial Services Commission (License GB22201125)
- Eurotrade Capital Ltd, UK regulated by the Financial Conduct Authority (License 777162)
☪️ Islamic account (swap‑free) Yes
📒 Demo Account Yes
💰 Bonus Special Deposit Bonus available
✴️ Institutional Accounts Not offered
👨🏼‍💼 Managed Accounts Not offered
📈 Maximum Leverage Up to 1:500
💰 Minimum Deposit Varies by account type (see account registration for details)
📌 PAMM Accounts Yes
💹 Margin Call Not specified
⛔ Stop‑Out Not specified
💷 Minimum Commission per Trade For Standard accounts: Commission‑free pricing is advertised;
For Raw or similar accounts: Commissions may apply (typically in the range of $3 to $3.5 per trade on select instruments)
🪙 Crypto trading offered Yes
🔒 Segregated Accounts Yes
👥 Account Types Standard, Raw Spread, Islamic
🖥️ Trading Platforms MetaTrader 4, MetaTrader 5, cTrader, WebTrader, TradingView, IC Markets Raw Spread Platform
📙 Educational Resources Eurotrader Education Hub provides:
- Video Courses
- eBooks
- Platform Tutorials
- Market analysis and news updates
☎️ Customer Service Hours 16 hours per day, 5 days a week
🔘 Tradeable Instruments Instruments available include:
- Forex
- Cryptocurrency CFDs
- Stock CFDs
- Indices CFDs
- Commodities CFDs
📍 Focus Focus on reliability, transparency, and fair pricing
📌 Important Note CFDs are complex instruments and carry a high risk of losing money rapidly due to leverage.
🚀 Open an Account Click Here

 

In the next part, we will explain several values that help you correctly set your position size calculator:

1. Trading Instrument:

●       This is the financial asset you intend to trade, such as EURUSD, XAUUSD (Gold), or US30 (Dow Jones 30).

●       How to Use It: Select your desired trading instrument from the list provided by your broker. This choice determines factors like pip size and contract size.

2. Trading Account Currency:

●       This is the currency in which your trading account is denominated, typically USD, EUR, etc.

●       How to Use It: Ensure you know the currency of your account as it affects the calculation of pip value and your risk in monetary terms.

3. Trading Account Equity:

●       This represents the total value of your trading account.

●       How to Use It: Input the current value of your trading account.

4. Risk Percentage:

●       This is the percentage of your trading account equity you will risk on a single trade.

●       How to Use It: Decide how much of your account you will risk (commonly between 1% to 3%).

5. Stop Loss (in pips):

●       It represents the number of pips you will lose on a trade before automatically closing.

●       How to Use It: Determine how many pips away from your entry point your stop loss will be set.

6. Pip Size:

●       It represents the value of a single pip movement for the trading instrument.

●       How to Use It: Your broker typically gives this value. For EURUSD, it's often 0.0001, while for XAUUSD, it's 0.1.

7. Contract Size (units per lot):

●       This is the number of units of the trading instrument in one standard lot.

●       How to Use It: This information can be found in your MT4/MT5 platform under Symbol Specification. For EURUSD, it's usually 100,000 units, while for XAUUSD, it's 100 ounces.

 

Position Size Calculator Examples and Formulas

In this part, we will discover a range of simple yet efficient formulas and examples related to the Position Size Calculator. These formulas are designed to provide a clear understanding of how to apply them in real-world trading scenarios. Whether a novice or professional, you can enhance your ability to calculate position sizes accurately, ensuring better risk management and trading efficiency.

Risk Amount = Trading Account Equity * Risk Percentage

Pip Value for a Standard Lot = EURUSD Pip Size * Contract size (units per lot)

Position Size in Lots = Risk Amount / (Stop Loss (pips) * Pip Value for a Standard Lot)

Position Size in Units = Position Size in Lots x Contract Size (units per lot)

EURUSD Example:

●       Trading Account Equity: $10,000

●       Risk Percentage: 2%

●       Stop Loss: 50 pips

●       Pip Size: 0.0001

●       Contract Size: 100,000 units

Calculation:

●       Risk Amount = $10,000 * 2% = $200

●       Pip Value for a Standard Lot = 0.0001 * 100,000 = $10

●       Position Size in Lots = $200 / (50 * $10) = 0.4 lots

●       Position Size in Units = 0.4 * 100,000 = 40,000 Units

XAUUSD (Gold) Example:

●       Trading Account Equity: $10,000

●       Risk Percentage: 2%

●       Stop Loss: 50 pips

●       Pip Size: 0.1

●       Contract Size: 100 ounces

Calculation:

●       Risk Amount = $10,000 * 2% = $200

●       Pip Value for a Standard Lot = 0.1 * 100 = $10

●       Position Size in Lots = $200 / (50 * $10) = 0.4 lots

●       Position Size in Units = 0.4 * 100 = 40 Ounces/Units

US30 (Dow Jones 30) Example:

●       Trading Account Equity: $10,000

●       Risk Percentage: 2%

●       Stop Loss: 50 pips

●       Pip Size: 0.1

●       Contract Size: 10 units

Calculation:

●       Risk Amount = $10,000 * 2% = $200

●       Pip Value for a Standard Lot = 0.1 * 10 = $1

●       Position Size in Lots = $200 / (50 * $1) = 4 lots

●       Position Size in Units = 4 * 10 = 40 Units

The FX Position Size Calculator is an indispensable tool for the astute Forex trader. It meticulously incorporates various pivotal elements such as trading account equity, risk tolerance, stop loss parameters, and the nuances of different trading instruments. The calculator's utility is converting complex trading variables into actionable data, enabling traders to determine the most appropriate lot size for each trade.

Forex traders can significantly refine their trade precision and risk management strategies using specific simple formulas and examples. Mastering these calculations to make informed and strategic trading decisions will minimise financial risks while enhancing the potential for profitability. Whether trading EURUSD, XAUUSD, or the dynamics of US30 markets, the Position Size Calculator is helpful in the trader's toolkit. It blends analytical rigour with practical application.

 

Explore the basics of a Position Size Calculator and how it can optimise your FX trading by reading our dedicated article here.

 

FAQ

Why use a Forex Position Size Calculator?

A Forex Position Size Calculator is a critical trading tool that assists in determining the right amount of currency units to buy or sell for each trade based on a trader's risk tolerance and specific trade parameters.

How does a Forex Position Size Calculator manage risk?

The Forex Position Size Calculator manages risk by calculating the appropriate trade size using inputs like account equity, risk percentage, stop loss in pips, and the currency pair. It ensures traders do not exceed their preferred risk level.

Adapting the Position Size Calculator to Your Trading Needs: Versatility in Action

The Forex Position Size Calculator is versatile and can be adapted for various trading instruments, such as currency pairs, commodities, and indices, each with a unique volatility and risk profile. This adaptability empowers you to manage risk across various trading scenarios.

What inputs are needed for a Position Size Calculator?

Understanding the Building Blocks: essential Inputs for a Forex Position Size Calculator

How does leverage impact calculations in a Position Size Calculator?

Leverage affects the position size calculations in a Forex Position Size Calculator by amplifying potential profits and losses. The calculator helps adjust the trade size to manage the increased risk exposure due to leverage effectively.

 

Bogdan Ulmu

Bogdan Ulmu is a financial writer and trading marketing professional who crafts clear, user-friendly guides, tutorials, and tips for investors at every level. Known for breaking down market trends, he blends analytical insight with practical strategies to help readers confidently navigate the fast-paced world of finance.

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