What is a lot in Forex?


To trade currency pairs in the forex market, it is necessary to understand important concepts such as lots. But what is lot in Forex and why is it important?

In this article, we will talk about the lot and its importance and learn about the lot in forex and how to use it to calculate the position size.

What is a lot?

Lot (Lot) in Forex is a standard unit of measurement that is used to describe the size of the transaction. Actually, we cannot buy a currency unit in Forex; We have to buy as much as one lot. For example, to buy the EUR/USD currency pair, we can buy a standard lot of the base currency (Euro in this example), which is equivalent to 100,000 units of it.

Of course, the sizes of the lots are diverse and everyone can choose one of those lots depending on their conditions. Lots in Forex are available in four main sizes:

1. standard lot; Equivalent to 100,000 units of base currency

2. mini lot; Equivalent to 10,000 units of base currency

3. micro lot; Equivalent to 1000 units of base currency

4. nano lot; Equivalent to 100 units of base currency.

Why is it important to understand the lot in Forex?

Understanding lot size is important for several reasons. First, forex brokers usually set a minimum deposit for opening an account. The available lot size may vary depending on the account type. Understanding lot size can help you determine which account type is right for your trading style.

Second, each trading strategy requires certain lot sizes. For example, a day trading strategy that involves opening and closing trades in one day requires smaller lots. While a long-term strategy may require a larger lot. Understanding the lot size can help traders choose the lot size that matches their trading strategy.

Lot training in forex with examples

As we said, the lots are divided into four standard sizes, mini, micro and nano. In this section, we will explain all four cases with examples.

1. Standard lot

The standard lot is equal to 100,000 units of base currency. For example, if we assume that the quote or exchange rate in the EUR/USD currency pair is equal to 1.3000, a standard lot of the base currency is equal to 1.3000 x 100,000, which is 130,000 units. This means that at this price, you would have to pay $130,000 to buy a standard euro lot.

This size is usually suitable for institutional traders or experienced and professional forex traders who have larger forex account balances and can take bigger risks.

The standard lot is suitable for the following conditions:

  • Certainty of profit: A professional trader who has a strong view of the market and is sure that the trade will end in his profit, can use the standard lot.
  • Long-term trades: In long-term trades where the trader keeps his position open for several weeks or months, it is better to use the standard lot. Larger price movements are often recorded in the long run and the trader can make more profit with larger positions.
  • Higher risk tolerance: Traders with higher risk tolerance can use standard lots. However, this also requires skill in risk management.

Advantages of the standard lot

  • More potential profit;
  • suitable for long-term transactions;
  • Better risk management.

Disadvantages of the standard lot

  • Due to the high margin of brokers, small traders cannot use it;
  • It is not suitable for short-term trading;
  • It restricts the trader to adjust the trading position.

2. Mini lot

The mini lot is one tenth of the standard lot, that is, equal to 10,000 units of base currency. In the same example above, with the same currency pair and the same price, you would have to pay $13,000 to buy a mini-lot of Euros.

Mini-lots are usually used by retail traders whose forex account balances are smaller than institutional investors and whose experience is less than that of using high leverage.

Mini lot is suitable for the following conditions:

  • Low risk tolerance: Traders with low risk tolerance can use mini lots to open smaller positions so that their potential losses are limited.
  • Testing new strategies: Traders who are trying out new trading strategies are better off using mini lots until they are sure that their strategy is profitable.
  • Diversification: Mini Lot is more suitable for traders who want to trade in several currency pairs and have a diversified portfolio.
  • Less account balance: Traders whose account balance is less, it is better to use mini lot.

Advantages of mini lots

  • less risk in the transaction;
  • lower margin requirements;
  • Better flexibility to adjust trading position size;
  • Suitable for short term transactions.

Disadvantages of mini lots

  • Their possible yield is lower than the standard lot;
  • Most liquidity providers prioritize traders with larger positions;
  • Some strategies cannot perform well with lots smaller than the standard lot;
  • Some brokers charge a higher percentage spread for smaller lot sizes.

3. Micro lot

A micro lot is one-tenth the size of a mini lot, equal to 1000 units of the base currency. In the same example we gave, with the same currency pair and the same price, you have to pay 1300 dollars to buy a micro lot of Euro.

Micro lot is suitable for the following conditions:

  • Limited capital: For traders who have limited capital to trade, micro lot is suitable.
  • Risk Management: Micro lots are better for people who want to minimize the impact of any losses with a smaller position size.
  • Testing new strategies: Micro lots allow traders to enter trades with smaller amounts and test new strategies.

Advantages of micro lots

  • Less risk in trading for beginner traders;
  • More flexibility to adjust position size;
  • lower margin requirements;
  • Suitable for scalping trades.

Disadvantages of micro lots

  • It is less profitable than other lots;
  • Transaction fees are higher due to the need to open and close more positions;
  • Some trading strategies may not work with micro lots.

4. Nano lots

A nano lot is equal to one tenth of a micro lot or 100 base currency units. In the example we gave, to buy a nano lot of the same currency pair at the same price, you will only need 130 dollars.

The larger the lot size, the higher the profit and loss. Because of this, when you use Nano Lott, you make a very small profit. Of course, if you lose, you experience a much smaller loss. However, it is difficult to find brokers that offer nano lots.

Lot size selection in forex

How to choose the right lot size in forex is an important decision and can affect returns and risk management. The factors that you should consider when choosing a lot are as follows:

1. Forex account size: The higher your account balance, the bigger the lots you can use.

2. Your knowledge and experience of the market: If you are a more professional trader, you can choose larger lot sizes.

3. The amount of risk taking: Traders who are more risk averse may prefer to trade with smaller lot sizes, while other traders may be comfortable with larger positions.

4. Trading strategy: Trading strategy can affect lot size. For example, a day trading strategy that involves taking a position and closing it in one day may require using a smaller lot size to manage risk.

5. Market conditions: Market volatility and liquidity affect lot size. In volatile markets, traders may need to use smaller position sizes to manage risk, while in more liquid markets, larger positions are better.

6. Trading platform: Some brokers only offer standard and mini options; But others may offer micro or even nano lots.

How to calculate lot size in forex

You usually don’t need to calculate the lot yourself; Because the trading platform itself calculates it and informs you. Before choosing a broker, always check what lot sizes they offer to suit your needs. However, if you want to calculate the lot size in forex, the formula depends on the currency pair you are trading and the size of your account. You can follow the steps below:

first stage

The first step in calculating the lot size is to determine how much risk you want to accept in the trade. This is usually expressed as a percentage of your account balance or a fixed dollar amount.

second stage

Calculate position size in units. The formula for this calculation depends on the currency pair you are trading and the lot size. For example, if you are trading a currency pair whose base currency is the US dollar (USD) and the lot size is 100,000 units (standard lot), you can use the following formula:

Position size = risk amount / (stop loss in pip x pip value per lot)

The risk amount is the amount you are willing to risk on the trade.

Stop loss in a pip means the number of pips from your entry price to the stop loss level.

The pip value per lot is the value of one pip for the currency pair you are trading.

third level

Once you have calculated the position size in units, you can convert it to lot size. To do this, you need to divide the position size by the lot size. For example, if you are trading a mini lot (10,000 units), you divide the position size by 10,000 to get the number of lots.


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