Position Size Calculator
Type your risk % and stop in pips (or price), get the exact lot size, pip value and risk-to-reward for every major forex pair and metals (gold, silver, platinum, palladium). No signup.
You'll risk $100.00 if your stop loss is hit.
Set your risk rule
Pick a fixed % of your account (1% is the industry standard) or a hard cash amount per trade.
Pick the instrument & prices
Choose your pair or index, then paste the entry and stop loss from your chart.
Take the lot size
The calculator shows the exact lots so a stop-out costs you only the risk you defined.
Worked example, EURUSD long
You have a $10,000 account and you want to risk 1% per trade. You spot a long setup on EURUSD: entry at 1.0850, stop loss at 1.0820 (30 pips of risk), take profit at 1.0910 (60 pips of reward).
- • Risk amount: 1% × $10,000 = $100
- • Pip value (EURUSD, 1 lot) = $10
- • Loss per lot if SL hits = 30 × $10 = $300
- • Lot size = $100 / $300 = 0.33 lots
- • R : R = 60 / 30 = 1 : 2
- • Potential profit = 0.33 × 60 × $10 = $198
Plug those numbers into the calculator above and you'll get the same result instantly.
Sizing one trade is easy. Sizing 500 with discipline is the edge.
Create Impacts logs the entry, stop, lots and outcome of every trade so you can see your real risk-per-trade, R-multiples and plan compliance over hundreds of executions, not just the one in front of you.
FAQ
How does this position size calculator work?
Enter your account balance, the % of the account you want to risk on a trade, your entry price and your stop loss. The tool computes how many lots you can take so that, if your stop is hit, you lose exactly the risk amount you set, no more, no less.
What is the difference between standard, mini and micro lots?
A standard lot is 100,000 units of the base currency. A mini lot is 10,000 units (0.10 lots). A micro lot is 1,000 units (0.01 lots). The calculator shows the position in standard lots; multiply by 10 for mini, by 100 for micro.
What risk % should I use per trade?
Most professional risk frameworks cap risk between 0.5% and 2% of the account per trade. Beginners should start at 0.5%–1%. Risking 5%+ per trade has a high probability of blowing the account within a normal losing streak.
Why do I need to enter a quote→account FX rate for some pairs?
If your account currency differs from the pair's quote currency (e.g. EUR account trading USDJPY), the pip value lives in the quote currency and must be converted. For pairs already quoted in your account currency, leave the rate at 1.
Should I enter the stop in pips or in price?
Both work and give the same lot size. Pips mode is fastest, just type the distance (e.g. 20 pips) and your risk %. Price mode is more precise for live setups where you already know the exact entry and stop loss levels from your chart. Switch with the toggle above the stop loss field.
Can I log the trade in Create Impacts after calculating?
Yes. Create a free account, paste the entry, stop and lot size into the journal, and Create Impacts tracks your real risk, R-multiples and plan compliance across every trade.
Educational tool only, not financial advice. Real results depend on spread, commissions, slippage and overnight swaps.