Position Size Calculator
Results update in real-time as you type
Position Size
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lots
Units
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total units
Max $ Risk
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at stop-loss
Stop-Loss
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pips distance
Enter your trade parameters above to see your risk assessment.
Risk : Reward Ratio
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Enter target price
How Position Sizing Works
Position sizing is the single most important factor separating profitable traders from blown accounts. Here's the exact formula our calculator uses.
Define Your Risk
Set the maximum percentage of your account you're willing to lose on any single trade. Most professionals risk 1–2% per trade.
Set Your Stop-Loss
Enter your entry price and stop-loss price. The calculator measures the pip distance to determine your exact risk per unit traded.
Get Your Lot Size
The formula divides your dollar risk by (pip distance × pip value) to output your exact position size in lots and units.
The Core Formula
Step 1
Dollar Risk =
Balance × Risk%
Step 2
Pip Distance =
|Entry − Stop| × 10,000
Step 3
Lot Size =
Dollar Risk ÷ (Pips × Pip Val)
| Risk Level | % Per Trade | Losses to Wipe Account | Best For |
|---|---|---|---|
| CONSERVATIVE | 0.5–1% | 200+ consecutive | Professionals, prop firms |
| MODERATE | 1–2% | 50–100 consecutive | Experienced traders |
| AGGRESSIVE | 2–5% | 20–50 consecutive | High-conviction setups |
| DANGEROUS | 5%+ | <20 consecutive | Almost never recommended |
Trading Tips & Guides
In-depth trading education from the Rewise Consultancy team. Learn risk management, position sizing, and strategy fundamentals.
The Complete Guide to Position Sizing for Forex Traders
Master the mathematics of position sizing — from the basic formula to advanced techniques used by professional traders and prop firms worldwide.
Read full guide → Risk ManagementHow to Set a Stop-Loss: The Professional Method
Stop-losses are the most misused tool in trading. Learn the correct method for placing stop-losses based on market structure, not arbitrary pip counts.
Read full guide → Trading Rules10 Risk Management Rules Every Trader Must Follow
The rules that separate consistently profitable traders from those who blow accounts. These are non-negotiable principles for anyone serious about trading.
Read full guide → Forex BasicsUnderstanding Lot Sizes: Standard, Mini and Micro Explained
Confused by standard, mini, and micro lots? This complete guide explains exactly what each lot size means and how to choose the right one for your account.
Read full guide →Frequently Asked Questions
Position sizing is the process of determining how many units, shares, or lots to buy or sell in a trade. It is calculated based on your account size, risk tolerance, and stop-loss distance. Proper position sizing is the foundation of capital preservation and long-term profitability.
Most professional traders suggest no more than 1–2% of your account per trade. At 1% risk, you need 100 consecutive losing trades to lose your entire account. Beginners should start at 0.5%. Never exceed 5% on a single trade regardless of conviction level.
A pip is the smallest standard price movement in a currency pair. For EUR/USD, 1 pip = 0.0001. In a standard lot (100,000 units), 1 pip equals approximately $10 USD. A mini lot gives $1 per pip and a micro lot gives $0.10 per pip. Always verify pip value with your broker.
Yes. Select "Stocks/ETFs" or "Cryptocurrency" from the market dropdown. The core formula is identical: Dollar Risk ÷ (Price Distance × Value per Unit). Ensure your entry and stop-loss prices match the actual market prices of the instrument you're trading.
Completely free, always — no account, no email, no sign-up required. All calculations happen instantly in your browser. No data is sent to any server. Rewise Consultancy believes every trader deserves access to professional-grade tools regardless of account size.
About Rewise Consultancy
Rewise Consultancy was built on a single conviction: the analytical tools and risk frameworks used by institutional traders and professional prop desks should be freely available to every market participant — regardless of account size, background, or experience level.
We are a team of traders, analysts, and developers with extensive experience navigating forex, equities, cryptocurrency, and derivatives markets. We have seen firsthand the devastating consequences of poor risk management, and the equally transformative effect that disciplined position sizing has on long-term trading performance.
Our tools are built to enforce one principle above all: protect the capital first. Every trader who uses our calculator before placing a trade is making a deliberate choice to put risk management ahead of impulse — and that choice, made consistently, is what separates sustainable trading from gambling.
Our Core Values
Capital First
Protecting capital is always more important than chasing returns. Risk management is the foundation of everything we build.
Precision Over Emotion
Trading decisions driven by calculation, not gut feeling. We provide the tools to make the shift from reactive to systematic.
Accessible to All
Professional trading knowledge shouldn't be gated behind expensive courses. We make it free and open to everyone.
Contact Rewise Consultancy
Have a question, a suggestion for a new tool, or a collaboration idea? We read every message and typically respond within 24–48 hours.