Determining position size is an important aspect of forex trading as it helps traders manage their risk and maximize their potential profits. Here are some steps to follow to determine position size when forex trading:

1. Calculate the amount of risk you are willing to take: Determine the amount of money you are willing to lose on a trade. This will help you determine the maximum amount of risk you can take on any single trade.

   
   

2. Determine the distance between your entry and stop loss: Your stop loss is the price at which you will exit the trade if the market moves against you. Calculate the distance between your entry price and your stop loss price in pips.

   
   

3. Calculate the pip value: The pip value is the amount of money that you will make or lose for each pip of movement in the currency pair you are trading. This varies based on the currency pair and the size of your trade.

   
   

4. Determine your position size: To determine your position size, divide the amount of risk you are willing to take by the distance between your entry and stop loss in pips, multiplied by the pip value.

For example, if you are willing to risk $100 on a trade, and the distance between your entry and stop loss is 50 pips, and the pip value is $10, your position size would be:

$100 / (50 pips x $10 per pip) = 0.2 lots

In this example, your position size would be 0.2 lots. Keep in mind that the exact calculation may vary based on the currency pair you are trading, the size of your trade, and the broker you are using. It's important to double-check your calculations and adjust your position size accordingly to ensure you are managing your risk effectively.