# How to Calculate Position Size and Stop-Loss with 500x Leverage on Gold?

Many people trading gold$XAUUSD casually mention 500x leverage, but when asked how to calculate position size, they are completely confused. Today, we’ll focus on one thing—how to calculate position size, stop-losses, and profit and loss with 500x leverage. No grand theories, just the calculations.

With 500x leverage, how much margin does each trade require?
There is only one formula:

Margin = lot size × 100 × price ÷ 500
At a gold price of 4400, let’s do some calculations:

- 0.01 lots → 0.01×100×4400÷500 = $8.8
- 0.05 lots → 0.05×100×4400÷500 = $44
- 0.1 lots → 0.1×100×4400÷500 =$88
In a $100 account, 0.1 lots consumes $88 in margin, leaving $12 to absorb volatility. If gold moves 10 points against you, the account is already in the red. A 50-point move and it is wiped out. This isn’t trading; it’s gambling.

How do you calculate the value of a point? Just remember one number
1 standard lot (1 lot = 100 ounces), a 1-point move = $1.

- 0.01 lots → 1 point = $0.01

- 0.05 lots → 1 point = $0.05

- 0.1 lots → 1 point = $0.1

For example, you open 0.05 lots, and the gold price falls from 4400 to 4390, a 10-point drop. How much do you lose? 10 × 0.05 = $0.5. It doesn’t look like much, right? But your margin is only $44, and a $0.5 loss is just the beginning. If you open 0.5 lots, the loss is $5. If you open 1 lot, the loss is $10. In the same $100 account, 0.5 lots is already a large position. Many people open 1 lot right away—that isn’t trading; it’s giving money away.

How should you set a reasonable stop-loss?
Set one rule: each trade can lose no more than 2% of the account.

For a $100 account, each trade can lose no more than $2. With 0.05 lots, every 1-point loss is $0.05. How many points can $2 withstand? 2 ÷ 0.05 = 40 points. Therefore, with 0.05 lots, the stop-loss should be no more than 40 points away. If it exceeds 40 points, either reduce the position size or skip the trade.

The same logic works in reverse—you want to set the stop-loss at 5 points, so adjust the position size to 0.2 lots, resulting in a $5 loss, which is also roughly 2% of the account. Keep the stop-loss fixed and use the position size to match it. That is the scientific approach, rather than deciding the position size first and then wondering where to place the stop-loss.

What should you do after a loss?
A loss is a loss. Don’t think about adding to the position to lower the average entry price. With 500x leverage, adding to a position to lower the average entry price only accelerates liquidation.

There is only one rule: “Calculate each trade independently.” If this trade hits its stop-loss, accept the 2% loss and start over with the next trade. After 3 consecutive losing trades, stop trading for the day. Many people refuse to accept a loss and insist on making it back, only to lose more and more.

After reading this, just remember three things
1. Margin for 0.01 lots = price×100÷500×0.01. At a price of 4400, that equals $8.8. Use this formula for any number of lots.

2. Each trade can lose no more than 2% of the account; use this to calculate the position size and stop-loss.

3. Don’t add to a losing position. Stop after 3 consecutive losing trades. Don’t fight the market—you can’t win. The market is there every day, but once your account is wiped out, you won’t have another chance.
However, everything above is only theoretical calculation. Position size and stop-loss distance should still be based on your individual risk tolerance, but every trade must have a stop-loss.
A stop-loss is not designed to make the most money from one trade, but to give us more opportunities to make more money.
I hope all my fellow veteran traders can happily earn U every day and enjoy winning trades all the way. $XAUUSD