Forex Margin Calculator
Calculate the exact cash collateral required by your broker to execute leveraged currency positions. This calculator computes your required initial margin across custom trade volumes, prevailing exchange rates, and leverage ratios from 1:10 up to 1:500.
Units of base currency (1 standard lot = 100,000 units)
Leverage multiplier granted by your brokerage
Conversion rate between traded base currency and your account currency
Collateral locked by broker to maintain this open trade
How to Use This Calculator
- Enter your position size in trade units (e.g., 100,000 for 1 standard lot).
- Choose your broker’s leverage tier from the dropdown list (e.g., 1:30, 1:50, or 1:100).
- Input the market price for the base currency relative to your account currency.
- Review the required cash margin to ensure your account maintains adequate free margin buffers.
Formula & Calculation Methodology
Required margin represents the portion of the total notional trade value you must hold as good-faith deposit to initiate and preserve the leveraged position.
Worked Example
1 standard lot (100,000 EUR) on EUR/USD at 1.0850 with 1:100 leverage
Frequently Asked Questions
What is the difference between margin and leverage?↓
Leverage is the multiplier enabling you to control larger positions (e.g. 1:100). Margin is the actual dollar amount held in escrow by the broker as security collateral (e.g. 1% of notional value).
What happens if my account equity falls below the required margin?↓
If consecutive trade losses cause account equity to fall below maintenance levels (typically 50%–100% margin level), your broker issues a margin call and may systematically liquidate open trades via stop-out.
Why are leverage limits capped at 1:30 in the UK and European Union?↓
Under ESMA (European Securities and Markets Authority) and FCA regulations, retail leverage is restricted to 1:30 on major forex pairs to protect consumer traders from rapid catastrophic liquidation.
Does required margin change as the exchange rate moves?↓
Yes. If your position is denominated in a base currency that differs from your account balance, fluctuations in the spot rate will expand or contract the dollar amount required to maintain margin.
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Source Citation & Disclaimer
Informational tool only; not licensed tax, legal, or financial advice.