How to Calculate Lot Size in Forex

How to Calculate Lot Size in forex trading

Introduction of Lot Size in Forex

Lots are units used in forex trading to measure the magnitude of trade and indicate how many units of the base currency you will purchase or sell about the other currency. You must be aware of the sizes of lots that forex brokers provide to trade forex. Several lot sizes will be encountered during your trading career, so it’s important to understand how much capital you need to spend and what the pip value is for each lot size.

What is Lot Size?

The term “lot size” describes the number of items ordered for production in a particular production run or delivery on a specific date. In other words, the entire quantity of a product ordered for manufacturing is what is essentially meant by lot size.

A lot size in the stock market refers to the number of shares you purchase in a single transaction. In options trading, the total number of contracts in a single derivative security is the lot size.

What is Lot in Forex Trading?

A lot in forex trading is a fixed quantity of the account base currency that is used to measure position volume. While trading forex, the risk increases with the size of a lot. In forex, a lot is the unit used to describe the amount of each trade’s position. 1000 units of cash make up a micro-lot, 10.000 units make up a mini-lot, and 100,000 units make up a normal lot. The risks faced by forex traders can be broken down into account risk and trade risk. Regardless of the market conditions, trading method, or setting, all these criteria are considered to calculate the appropriate position size.

Types of Lot Sizes

types of lot size in forex

Standard Lot

While trading with many Forex brokers’ ordinary account types, you will most frequently encounter the standard lot size. A standard lot equals 100.000 units of the base currency in a quote of currency pairs. In other terms, 1 lot means 100,000 units.

Mini Lot

Before technology and derivatives took over the forex to make it easier for more people to access the markets, this was the original “smallest” lot. For people who might prefer to trade forex on a trading platform with slightly lower amounts, a mini lot size is a perfect option.

10% of the regular lot (100,000 x 0.10 = 10.000 units) makes up the mini lot. That is 10,000 of the financing currency for your account.

Micro Lot

Micro lots are the smallest trading lot accessible to most brokers and are a useful starting point for beginners. They offer a secure environment for new traders to experience the market safely and affordably with a little initial deposit while minimizing risk. A Micro lot is one-thousandth of a standard lot (100,000 x 0.01) in size.

Nano Lot

The smallest lot that can be traded has a value of 100 units, or $100. Because the lot value is so low, this is where most beginners start when choosing a recommended lot size. If you trade with a nano lot size position, each pip value in your trade is worth $0.1 cents.

How to Calculate Lot Size in Forex?

Step 1- Determine The Risk Limit for Each Trade

Traders can define risk in terms of dollars per position trade to determine risk percentage for trade using account balance. There should be a 1%–2% maximum risk per trade position.

Step 2 – Use Dollar per Pip to Determine The Size of a Forex Position

The smallest unit of change in a currency price is called a pip, which stands for “percentage in point” or “price interest point.” A pip is equal to 0.0001 for most currency pairs.

When the price crosses 1 pip in either direction or another, a trader receives a profit or loss in the currency of the deposit.

The pip risk for each trade is determined as the difference between the stop-loss order and the entry point. The pip risk associated with a certain trade also affects the stop-loss level. Several factors, including fluctuations and strategy, influence pip risk.

Step 3 – Compute The Position for The Forex Lot Size

The pip values are set at 0.0001 of the lot size if the trading account is funded with the quote currency. Typically, US dollars are used to fund the forex trading account. In this case, the pip value will be multiplied by the exchange rate of the quoted currency to the US dollar if it is not the dollar.

Factors that Determine Lot Size in Forex

Account size

The larger the lot size, the more leverage or money you’ll need to put down, and the more each pip fluctuation will be amplified. More financial risk is associated with trading with larger lots. Because the percentage amount at risk is higher with smaller account sizes. You must choose the lot size that best suits your trading style, risk tolerance, and account size.

Risk management strategy

Risk management is an important subject in day trading. It describes the method of minimizing risks and maximizing returns. While a modest exposure won’t result in big gains, it also won’t put you at risk of sizable losses. Consider the risk you are willing to take when choosing the size of your lot. How much cash you have on hand and how much of it you genuinely desire to risk are some of them. 


Due to the leverage in your account, you have access to this. Let’s assume that your account has a 100:1 leverage ratio. This implies that you trade $100 worth of currency for every $1 you use. The needed margin to open a position of $100,000 will be $1,000 for you to trade.

Market conditions

The size of your trading lot determines how much a market movement affects your accounts. An exchange or other similar market regulator establishes the value of a lot, ensuring that everyone trades a fixed quantity and is aware of how much of an asset they are trading when they initiate a position.


A lot in forex trading is a fixed quantity of the account base currency that is used to measure position volume. While trading forex, the risk increases with the size of a lot. In forex, a lot is the unit used to describe the amount of each trade’s position.

A lot size in the capital markets is a measurement or quantity increment that is suitable for or specified by the party making the offer to buy or sell it. For example, when we buy a pack of six candies, we are purchasing a single lot of candy.

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