Margin Calculator

Margin is the collateral required to open and maintain a leveraged position. Think of it as a good-faith deposit — you don't pay the full value of the trade, just a percentage. With 50:1 leverage, you need $2,000 in margin to control a $100,000 position. The broker lends you the rest.

Leverage amplifies both gains and losses proportionally. At 50:1, a 1% price move in your favor produces a 50% return on your margin. But a 1% move against you produces a 50% loss. A 2% adverse move wipes out your entire margin. This is why leverage is often called a double-edged sword — and why most retail traders who use high leverage lose money.

Margin level (equity ÷ used margin × 100) indicates your account health. When it drops below 100%, most brokers issue a margin call — a warning to deposit more funds or close positions. If margin level falls to 50% (the "stop-out level" at many brokers), positions are automatically liquidated, starting with the largest losing trade.

Keeping your margin level above 200% provides a reasonable safety buffer. Professional traders rarely use more than 10:1 effective leverage, even when their broker offers 50:1 or 100:1. The available leverage is a ceiling, not a target. Using all of it is the fastest path to a blown account.

Regulators worldwide have imposed leverage caps to protect retail traders. US regulations (CFTC) limit forex leverage to 50:1 for major pairs and 20:1 for minors. EU regulations (ESMA) cap at 30:1 for majors, 20:1 for minors, and 2:1 for crypto. UK rules mirror the EU. Australia allows up to 30:1. Offshore brokers may offer 500:1 or more, but higher leverage doesn't mean better — it means faster losses.

For stock trading, US Regulation T requires 50% initial margin (2:1 leverage). Pattern day traders with $25,000+ accounts get 25% margin (4:1 intraday leverage). These limits exist because regulators have decades of data showing that higher leverage correlates directly with higher loss rates among retail traders.