Forex Risk Calculator — Know Your Exposure Before You Click Buy

Calculate your dollar risk, reward-to-risk ratio, and maximum drawdown exposure for every trade. Master risk first, profits follow.

What Is Trading Risk?

Risk is the maximum amount of money you can lose on a single trade if your stop loss is hit. Professional traders define risk in dollars (or percent of account) — not in pips. A 50-pip stop on EUR/USD with a 0.10 lot = $50 risk. The same 50-pip stop with a 1.0 lot = $500 risk. Knowing your dollar risk before you enter a trade is the difference between a long career and a blown account.

The 1% Rule

The most respected rule in retail trading: never risk more than 1% of your account on a single trade. With a $10,000 account, that means $100 maximum risk per trade. This rule allows you to take 100 consecutive losses before losing your full account — statistically almost impossible. SignalPro signals always include recommended lot sizes calibrated to the 1% rule.

How to Calculate Risk

Risk Formula: Dollar Risk = Lot Size x Stop Loss Pips x Pip Value. Example: 0.20 lots x 30 pips x $10 per pip = $60 risk. To work backwards from a fixed dollar risk: Lot Size = Dollar Risk / (Stop Loss Pips x Pip Value). $100 risk / (40 pips x $10) = 0.25 lots. Use our tool above for instant calculations across any pair, including gold and indices.

Reward-to-Risk Ratio (R:R)

The R:R ratio compares profit potential to risk. A 3:1 R:R means you target $3 for every $1 risked. With a 3:1 R:R, you only need a 33% win rate to break even — and any win rate above 33% is profitable. SignalPro signals target a minimum 2:1 R:R on every trade. Avoid trades with R:R below 1.5:1 unless your win rate consistently exceeds 60%.

Account Drawdown & Compound Risk

Drawdown = peak-to-trough equity loss. Risking 1% per trade caps your worst-case drawdown around 10-15% during a losing streak. Risking 5% per trade can produce 50%+ drawdowns — and you need a 100% gain to recover from a 50% drawdown. Compound risk also matters: never have more than 5% total risk across all open positions simultaneously.

Frequently Asked Questions

What percentage should I risk per trade?
Professional traders risk 1-2% per trade. Beginners should stick to 0.5-1% until they have 100+ trades of consistent execution. For prop firm challenges with strict drawdown limits, 0.25-0.5% per trade is safer.
How do I calculate dollar risk on forex?
Dollar Risk = Lot Size x Stop Loss Pips x Pip Value. For 0.10 lots on EUR/USD with a 50-pip stop: 0.10 x 50 x $1 (pip value at 0.10 lots) = $5 risk.
What is a good reward-to-risk ratio?
A minimum 2:1 R:R is the industry standard. SignalPro signals target 2:1 to 5:1 ratios. With 2:1, you only need a 34% win rate to be profitable.
How much can I lose in a row?
With a 50% win rate strategy, statistically you can experience 7-10 consecutive losses out of every 1000 trades. Risking 1% per trade means a 7-10% drawdown in the worst losing streak — fully recoverable.

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