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Forex leverage is a powerful tool that allows traders to control large positions in the market with a relatively small amount of capital. It is one of the defining features of margin trading and the reason forex is accessible to retail traders worldwide. However, while leverage amplifies potential profits, it equally magnifies potential losses, making it essential to understand how it works.
How leverage works
A leverage ratio expresses the relationship between the total position size and the trader's required deposit. Common leverage ratios in forex include:
| Leverage | Margin Required | $1,000 Controls | 10 Pip Move ($) |
|---|---|---|---|
| 50:1 | 2.0% | $50,000 | $50 |
| 100:1 | 1.0% | $100,000 | $100 |
| 200:1 | 0.5% | $200,000 | $200 |
| 500:1 | 0.2% | $500,000 | $500 |
Risk Warning: Higher leverage amplifies both profits AND losses equally. A 10-pip move with 500:1 leverage on $1,000 means $500 gain or $500 loss — that's 50% of your entire account. Always use appropriate position sizing.
The higher the leverage ratio, the less capital you need to open a position, but the greater your exposure to market fluctuations.
Understanding forex margin
Forex margin is the amount of money required to open and maintain a leveraged position. It is not a fee or cost — it is a portion of your account equity set aside as collateral. The margin requirement is inversely related to the leverage ratio.
For example, with 100:1 leverage, the margin requirement is 1%. To open a standard lot (100,000 units) position on EUR/USD, you would need $1,000 in margin. The remaining $99,000 is effectively borrowed from the broker.
Margin calculation formula
Calculating your required forex margin is straightforward:
Required Margin = Position Size / Leverage Ratio
If you want to trade 1 standard lot ($100,000) with 200:1 leverage: Required Margin = $100,000 / 200 = $500.
What is a margin call?
A margin call occurs when your account equity falls below the required margin level. This is the broker's warning that your account no longer has sufficient funds to support your open positions. At this point, you must either deposit additional funds or close some positions to restore your margin level.
Most brokers set the margin call level at 100% — meaning your equity equals your used margin. If you ignore the margin call and your equity continues to decline, the broker will initiate a stop out.
Stop out level
The stop out level is the point at which the broker automatically closes your losing positions to limit further losses. This typically occurs at 20-50% margin level, depending on the broker. Understanding stop out levels is critical for proper risk management in margin trading.
Benefits and risks of leverage
Trading leverage offers clear advantages and risks that every trader must weigh:
- Benefit: Trade larger positions with limited capital.
- Benefit: Diversify across multiple positions without tying up large sums.
- Risk: Losses are amplified proportionally — a 1% move against you at 100:1 leverage wipes out your entire margin.
- Risk: High leverage can lead to rapid margin calls if risk management is neglected.
The key to using forex leverage effectively is combining it with disciplined risk management, appropriate position sizing, and stop-loss orders to protect your capital.
Try it yourself
Leverage and margin
Move the leverage and watch the same 1,000 of margin carry a larger position, while the adverse move that reaches a stop-out level becomes smaller.
Steps: 1:1, 1:2, 1:5, 1:10, 1:20, 1:50, 1:100, 1:200, 1:500.
Position carried
100,000.00USD
Move to the stop-out level
0.5%against the position
The working
- 1Position carried (margin × leverage)1,000.00 × 100 = 100,000.00 USD
- 2Margin requirement (1 ÷ leverage)1 ÷ 100 = 1%
- 3Loss that takes the equity to 50% of the margin1,000.00 − 50% × 1,000.00 = 500.00 USD
- 4Adverse price move that causes that loss500.00 ÷ 100,000.00 = 0.5%
- Margin (the whole of the example equity)
- 1,000.00 USD
- Margin requirement
- 1%
- Equity left at the stop-out level
- 500.00 USD
At 1:100, a margin of 1,000.00 USD carries a position of 100,000.00 USD, and a price move of 0.5% against it takes the equity down to the example stop-out level. Higher leverage brings the stop-out closer: at 1:200 the same margin would reach it after a move of only 0.25%.
Two tools work the same ideas with your own figures: Leverage, visualised and Margin.
SimulationEvery figure here is an invented round example: no real instrument and no real price. The whole of the example equity is used as margin for one position, and the stop-out level of 50% is an example: levels differ between brokers and account types. In a gap the position can be closed at a worse price than the level implies. No level of leverage is suggested here. Educational information, not investment advice or a recommendation to trade.
Three questions
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Question 1 of 3
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The lesson, in a limerick
A little set down as a stakecontrols a large sum, for its sake.The gain is made tall,but so is the fall:it’s the size, not the market, you make.
Lesson 3 of 3 in Forex fundamentals. A suggested order: nothing here is graded, timed or certified.