What Is Leverage? Definition, Example and Liquidation Math

By Gurjeet Singh, developer of CoinPriceAlert · Published 1 September 2026 · 3 min read

The definition

Leverage is borrowed exposure that multiplies both gains and losses.

Definitions in crypto are often circular or full of jargon. If you understand only that sentence, you already know more than most people using the term.

Why it matters to you

In practice, it is the single largest cause of catastrophic retail losses in crypto.

The concepts that affect your decisions are worth understanding properly; the rest is trivia.

The part people get wrong

One important nuance: at 20x, a 5% adverse move liquidates the entire position.

Most costly mistakes in crypto come from a half-understood concept rather than a completely unknown one.

The arithmetic, with a worked example

Leverage is borrowing to hold a bigger position than your capital. Put up $1,000 at 5× and you control $5,000 of Bitcoin. If Bitcoin rises 10%, the position gains $500, which is 50% of your capital. If it falls 10%, you lose $500, which is 50% of your capital. Nothing about the asset changed; the multiplier changed how much of you is exposed to each percentage point.

The exchange lends the rest and protects itself with a maintenance margin. When losses eat your margin down to that level, the position is closed for you. At 5× the liquidation sits around 18 to 19% below entry; at 10× around 9 to 10%; at 50× under 2%. Bitcoin moves about 1.3% on an ordinary day and more than 4% on a wild one, so 50× is a coin toss with a fee attached.

Isolated versus cross margin

Isolated margin fences the risk: only the margin you assigned to that position can be lost. Cross margin uses your whole account balance as collateral for every open position, which keeps a single position alive longer and means one bad trade can take the others with it. Isolated is the safer default; cross is a tool for people managing a book rather than a trade.

Whichever you use, the cost of borrowing is real. On perpetual futures it arrives as funding; on margin spot it is an hourly or daily interest rate. A position held for weeks at high leverage can pay more in carry than it earns in direction.

Why leverage moves prices you do not use it on

Even if you never touch it, leverage decides how violent moves are. Every leveraged position has a price at which it is force-closed, and those closes are market orders that push price further in the same direction, triggering the next tier. That is why crypto has liquidation cascades, and why a spot holder should glance at open interest and funding before reading a sharp move as news.

The practical rule for anyone using it: choose the loss you can accept first, size the position so that a stop at a sensible level costs exactly that, and let the leverage be whatever falls out of the calculation. Leverage chosen as a number, 20× because it was available, is the most reliable way to lose the account.

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Related terms

• Perpetual Future — a derivative contract that tracks an asset with no expiry date
• Stop-Loss — an order that closes a position once price passes a level you chose
• Volatility — the degree to which a price moves around, in either direction

Sources

• Binance Academy: What is leverage in crypto trading?

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