Margin Calculator

Calculate the margin required to open a forex position based on the pair rate, lot size, leverage, and contract size.

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Calculator

Pair Rate (Exchange Rate)

Lot Size (1.0 = Standard, 0.1 = Mini, 0.01 = Micro)

Leverage (e.g., 100 = 1:100)

Contract Size per Lot (Default 100000)

Required Margin

$1,100.00

Leverage Ratio

1:100

Position Value

$110,000.00

How It Works

Margin is the amount of money required in your account to open and maintain a leveraged forex position. It acts as a security deposit — not a fee or transaction cost.

Different brokers offer different leverage levels, ranging from 1:10 to 1:500 or more. Higher leverage means lower margin requirements but also amplifies both profits and losses.

This calculator helps you determine how much margin a specific trade will require so you can manage your account's margin level and avoid margin calls.

The Formula

Required Margin = (Pair Rate × Lot Size × Contract Size) / Leverage

Pair Rate = Current exchange rate, Lot Size = Number of lots (1.0 = standard), Contract Size = 100,000 units per standard lot, Leverage = Broker leverage ratio (e.g., 100 for 1:100). Position Value = Pair Rate × Lot Size × Contract Size.

Example

Scenario: You want to trade 1 standard lot of EUR/USD at 1.1000 with 1:100 leverage.

Calculation: Position Value = 1.1000 × 1 × 100,000 = $110,000. Required Margin = $110,000 / 100 = $1,100.

Result: You need $1,100 in your account to open this position. With 1:50 leverage, the margin would be $2,200.

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Frequently Asked Questions

What is margin in forex?

Margin is the minimum amount required in your trading account to open a leveraged position. It's not a cost but a security deposit held by your broker.

What leverage should I use?

Beginners should use lower leverage (1:10 to 1:30). Higher leverage (1:100+) increases risk significantly. Many reputable brokers now offer lower leverage by default.

What happens if I don't have enough margin?

If your account equity falls below the margin requirement, you'll receive a margin call. If you don't deposit more funds, your broker may close your positions to prevent further losses.

Is margin the same as a fee?

No, margin is a security deposit that is returned to you when you close the position, assuming no losses. It's different from spreads, commissions, or swap fees.

How does contract size affect margin?

A standard lot (100,000 units) requires 10x the margin of a mini lot (10,000 units) and 100x the margin of a micro lot (1,000 units) at the same leverage.