Leverage lets you control a large position with a small deposit, called margin. With 1:30 leverage, $1,000 controls a $30,000 position. It magnifies both gains and losses.
Leverage is written as a ratio such as 1:30 (or 30:1). It’s the flip side of the margin requirement: 1:30 means you deposit 1/30 of the position value, or 3.33%.
| Leverage | Margin required | Margin for a $100,000 position |
|---|---|---|
| 1:2 | 50% | $50,000 |
| 1:10 | 10% | $10,000 |
| 1:30 | 3.33% | $3,333 |
| 1:100 | 1% | $1,000 |
You have $1,000 and open a $30,000 position (1:30). If the market moves 1% in your favour, you make $300: a 30% gain on your $1,000. If it moves 1% against you, you lose $300, or 30%. A 3.33% move against you would wipe out the whole deposit. Profit and loss are based on the full position, not on the margin.
Your broker tracks your margin level (equity ÷ used margin). If losses push it down to the broker’s margin call level, you may be asked to add funds or be blocked from opening new trades. At the stop-out level, the broker starts closing your positions automatically. These levels differ by broker. In fast markets, losses can exceed your deposit unless your account has negative balance protection.
Many regulators cap retail leverage. Under the EU’s ESMA rules, which the UK’s FCA also adopted, the limits are 30:1 for major currency pairs, 20:1 for other pairs, gold and major indices, 10:1 for other commodities and indices, 5:1 for individual shares and 2:1 for crypto CFDs. US forex dealers are limited to 50:1 on major pairs and 20:1 on others. Limits elsewhere vary, and professional clients can get higher leverage.
The margin calculator shows the margin for any lot size and leverage; the position size calculator sizes a trade by how much you’re prepared to lose, which matters more than the leverage available. For crypto futures, see the crypto leverage calculator with its liquidation estimate.
Educational explanation only. ChartWatch is independent and doesn’t give trading or investment advice. Trading carries a risk of loss.
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