Now you need to understand about Lot: How important is it for Forex trading?

Traders who are new often face the same problem – they don’t know what size order to open. Some press the micro lot below $0.01 because they fear losses; others go full 1.0 because they are eager to get rich quickly. This article will explain what Lot really is and what formulas industry experts use to choose Lot sizes.

Why the Forex Market Needs Lots: The Same Old Trading Problem

Before discussing what a Lot is, we need to understand what problem led the industry to create this system.

In the foreign exchange market (Forex), prices change in very small amounts. The popular way to describe price movements is “Pip” (Percentage in Point). For example, EUR/USD moving from 1.0850 to 1.0851 is just 1 Pip.

Imagine buying only 1 Euro. Even if the price moves 100 Pips, you only make $0.01. Such trading “cannot be practically done.”

Because of this, the market and broker companies (brokers) created a system of “standard unit sizes” to aggregate small trades into sizes that can generate meaningful profit or loss. This system is called Lot.

Think of it like buying eggs: you don’t buy eggs one by one at the market, but in cartons (Lot).

Definition of a Lot: The Common Trading Unit

Lot is the term for the contract size (Contract Size) you are buying or selling. It indicates how much of the asset you control.

In the Forex market, there is a widely accepted standard: 1 Standard Lot = 100,000 units of the base currency (Base Currency).

“Base currency” can be confusing, but it’s simple: it’s the first currency in the pair:

  • EUR/USD: 1 Lot = control of 100,000 Euros (EUR), not dollars
  • USD/JPY: 1 Lot = control of 100,000 US Dollars (USD)
  • GBP/USD: 1 Lot = control of 100,000 Pounds (GBP)

Knowing that 1 Lot equals 100,000 units of the first currency helps you accurately calculate risk.

Types of Lots: Choosing the Right Size

Since 1 Standard Lot is large (100,000 units), requiring substantial capital, the market divides Lots into smaller sizes so retail traders can access the market and better manage risk.

###Common Lot types:

Standard Lot (Full Lot)

  • Size: 1.0
  • Units: 100,000
  • Suitable for: Professionals, funds, large capital

Mini Lot (Mid Lot)

  • Size: 0.1
  • Units: 10,000
  • Suitable for: Intermediate traders, moderate capital

Micro Lot (Small Lot)

  • Size: 0.01
  • Units: 1,000
  • Suitable for: Beginners, strategy testing, limited capital

Nano Lot (Lowest Lot)

  • Size: 0.001
  • Units: 100
  • Suitable for: Basic training, demo accounts

Leading brokers, including Mitrade, use Micro Lots (0.01) as the minimum size, balancing risk reduction and psychological pressure for learning.

(Comparison table:

Type Size Units Approx. Value/Pip )EUR/USD### Suitable for
Standard 1.00 100,000 ~( Professionals, funds
Mini 0.10 10,000 ~) Intermediate
Micro 0.01 1,000 ~$0.10 Beginners, testing
Nano 0.001 100 ~$0.01 Beginners

How Lot Size Affects Profit and Loss

This is the core of the topic: the Lot size you choose determines the “value per Pip” of your trade.

Think of Lot size as the speed control of your trading: the more you press, the faster it goes—whether for profit or loss.

From the table above, many memorize these figures because they directly relate to USD-based pairs like EUR/USD, GBP/USD:

  • 1.0 Standard Lot $10 100,000 units$1 → 1 Pip change ≈ (- $10)
  • Mini Lot (10,000 units) → 1 Pip change ≈ $10
  • $1(
  • Micro Lot )1,000 units$1 → 1 Pip change ≈ (- $0.10)

Case Study: Different Results from the Same Trade Size

Suppose:

Trader X ###aggressive( and Trader Y )conservative( both start with $1,000. Both expect EUR/USD to rise and enter buy orders at the same price, with the same 50 Pip Take Profit / Stop Loss.

But they choose different Lot sizes:

  • Trader X: 1.0 Standard Lot )(per Pip$10
  • Trader Y: 0.01 Micro Lot )$0.10 per Pip(

If the price moves 50 Pips in the right direction:

  • Trader X: Profit = 50 × )= +$500 (+50% of account
  • Trader Y: Profit = 50 × $0.10 = +$5 )+0.5% of account

If the price moves 50 Pips against:

  • Trader X: Loss = 50 × $10 = -$500 (-50% of account
  • Trader Y: Loss = 50 × $0.10 = -$5 )-0.5% of account

It seems Trader X is smarter: if correct, he gains 100 times more.

But here’s the reality: if Trader X loses, his account drops to -50%. If he suffers another similar loss, his account blows up.

Meanwhile, Trader Y, with only -0.5%, can withstand about 200 such losses before his account is wiped out.

Conclusion: Overtrading with too large a Lot size is the fastest way to blow your account, regardless of your strategy.

Therefore: Lot size is not a tool for profit, but a tool for “risk management.”

How Professional Traders Calculate Lot Sizes

Once you understand how dangerous it is to choose larger Lot sizes, the next question is: “What Lot size should I choose?”

Trading without calculating Lot size is like driving downhill without brakes. Professionals never guess; they calculate before opening each order.

( Three variables to know before calculating:

  1. Account Equity )Account balance(: How much money is in your trading account )e.g., $5,000$10
  2. Risk Percentage (Risk per trade): How much are you willing to lose per trade? Industry recommends 1-3% (e.g., 2%)
  3. **Stop Loss $500 Pips$500 **: How many Pips away is your stop loss from entry?

$500 Standard formula( used worldwide:

Lot Size = )Account Equity × Risk Percentage$5 ÷ $995 Stop Loss in Pips × Pip Value(

This formula may look complex, but it’s just a way of thinking:

  • Beginners: “How much Lot should I trade?”
  • Professionals: “If I go wrong, where is my stop loss? How much am I willing to lose?”

)Example 1: Forex (EUR/USD)

Scenario:

  • Capital: $10,000
  • Risk: 2% ###= $200(
  • Stop Loss: 50 Pips
  • Pip value per 1.0 Lot: )

Calculation:

  • Lot Size = (÷ )50 × $10(
  • Lot Size = 0.4 Lots

Meaning: Open a 0.4 Lot order; if the price hits the stop loss, you lose exactly 2% of your account.

)Example 2: Gold (XAUUSD)

The challenge arises with other assets like gold because the way we count points differs:

  • In Forex, we count “Pip” at 4 decimal places.
  • In gold, the price is around 4,000.00, and we count “Point” at 2 decimal places.
  • When trading 1.0 Lot of gold, a $1 move equals 100 Points.

Scenario:

  • Capital: $5,000
  • Risk: 2% (= $100)
  • Entry at 4,050.00, stop at 4,045.00 = $5.00 difference = 500 Points
  • Per Point value of 1.0 Lot: ###

Calculation:

  • Lot Size = (÷ )500 × $1(
  • Lot Size = 0.2 Lots

Different Markets, Different Lot Sizes: How Much Do They Differ?

Many traders are confused, thinking that Lot sizes are the same across markets. Using 0.1 Lot in Forex is the same as 0.1 Lot in gold or oil, but they are not.

  • 0.1 Lot in EUR/USD = 10,000 EUR
  • 0.1 Lot in XAUUSD = 10 ounces of gold
  • 0.1 Lot in WTI crude = 100 barrels of oil

The contract sizes and risk profiles are entirely different.

)Comparison table:

Market Asset 1 Standard Lot Represents
Forex EUR/USD 100,000 EUR 100,000 units of EUR
Commodity Gold (XAUUSD) 100 ounces 100 ounces of gold
Commodity Oil ###WTI( 1,000 barrels 1,000 barrels of oil
Index S&P 500 Varies by broker Value × 1, 10, or 50 times
Stock Thai stocks 100 shares 100 shares of stock

Final Key Takeaway

Lot size is not a random number you pick. It is a risk management tool. Choosing the right Lot size is more important than finding the perfect entry point because it determines how long you can stay in the market.

Change your question today:

  • Stop asking: “How much Lot to trade to get rich?”
  • Start asking: “If I go wrong in this trade, what Lot size allows me to still have a chance to continue trading?

This is the difference between a trader and a master trader.

LOT0.91%
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