Free calculator
How big
How big
should this trade be?
Size from your stop, not your gut. Pick what you risk, then your entry and stop.
Working it out…
Runs in your browser: nothing you type is sent anywhere. Arithmetic, not advice.
How it works
Three steps, no magic.
STEP 1Your risk
1% of a $50,000 account is $500.
$500STEP 2Risk per unit
Entry to stop, in dollars, for one contract, share, lot or coin.
15 pts × $2 = $30STEP 3Your size
Your risk ÷ risk per unit, rounded down so you never risk more.
16 MNQ
Sized for you
Your size, from your stop, every trade.
In Journalcade your A, B and C setups each get their own risk cap, and the contract size comes from your stop, always inside your rules.
- Game plan: a risk cap for each setup grade, and the size it allows Pro
- Circuit breaker: calls the day at your loss and trade limits
- Every trade checked against your plan, with the rule and the numbers when it breaks one Pro
Questions
Quick answers.
How much should I risk on one trade?+
Many traders keep it between 0.5% and 2% of the account: an amount they could lose ten times in a row and still trade calmly. That part is your call.
Why does it round down?+
So the trade never risks more than you allowed. The bar shows how much of your allowance the size uses.
My size comes out at zero.+
Your stop is too wide for your risk on one contract. A micro contract (MNQ for NQ, MES for ES) is a tenth of the size, and the calculator suggests it when it fits.
How are forex lots counted?+
A standard lot is 100,000 units. For pairs priced in dollars (EUR/USD) a 0.0001 move on one lot is $10; for pairs with the dollar first (USD/JPY) the calculator divides by the price.
Your career starts now
Your Rookie card is waiting.
Free to start. Journal your first trade today and watch the numbers fill in.