Free professional calculators for forex traders
The 1% rule is the single most important risk management concept in trading. Professional traders never risk more than 1-2% of their account on a single trade. This rule ensures that a series of losses will not destroy your trading capital.
You risk no more than 1% of your total account balance on any single trade. If you have a $10,000 account, your maximum loss per trade is $100. This includes your stop loss. If your stop loss is 20 pips, you must size your position so that a 20-pip loss equals $100.
Even the best traders lose. A 60% win rate is excellent. That means 40% of trades lose money. With proper position sizing, you can survive losing streaks and keep trading long enough for your edge to work.
If you risk 1% per trade and lose 10 trades in a row (which rarely happens but could), your account drawdown is approximately 10%. You still have 90% of your capital. If you risked 5% per trade, the same losing streak would cost 50% of your account – a hole that is very difficult to recover from.
Follow this formula:
Account balance: $10,000 USD
Maximum risk (1%): $100
Trade: EUR/USD
Stop loss: 25 pips
Pip value per standard lot: $10
Calculation: $100 ÷ (25 × $10) = $100 ÷ 250 = 0.40 standard lots
This equals 4 mini lots or 40 micro lots. If your stop loss hits, you lose exactly $100 – 1% of your account.
If your account is in EUR or GBP, you must convert everything to your account currency. Use our pip calculator which handles this automatically.
Professional traders rarely exceed 2%. Some aggressive traders risk 3-5%, but this requires exceptional skill and large accounts. For beginners, 1% is mandatory. For intermediate traders, 1-2% is acceptable. Never exceed 2% until you have at least one year of consistent profitability.
Risking only 1% removes emotion from trading. A $100 loss on a $10,000 account does not hurt emotionally. You can take the loss and move on to the next trade without revenge trading or fear. This emotional stability is what separates profitable traders from gamblers.
When your account grows, recalculate position sizes. Never increase your risk percentage just because you had a few winning trades. Stick to 1% regardless of recent results. Consistency is the key to long-term success.
Use our pip value calculator to quickly determine position sizes for every trade. Never enter a trade without knowing exactly how much you stand to lose.
← Back to all articles