Risk Per Trade Calculator: Know the Exact Dollar Amount You Are Risking
Before you decide how many shares or lots to trade, decide how many dollars you are willing to lose if the stop is hit. That dollar figure — risk per trade — is the foundation of consistent position sizing. This page focuses on defining and calculating risk per trade.
The free Trading Position Size Calculator computes risk per trade from your equity and risk percentage, then converts it into position size.
The Risk-Per-Trade Formula
Risk per Trade ($) = Account Equity × Risk Percentage
This amount becomes the maximum loss the trade is allowed to produce. Position size is then set so that the stop-loss distance produces exactly that loss (or less).
See the position size based on risk page for the full conversion into units, and the account risk percentage calculator page for guidance on choosing the percentage.
Practical Example
$25,000 equity × 1 % = $250 risk per trade.
That $250 is the ceiling. The calculator then finds the number of units whose stop-loss distance equals $250 of risk.
Why Define Risk First
Defining risk first removes the temptation to size positions based on conviction, recent results or available margin. The risk decision is made cold; the size is simply the mathematical consequence.
Broader risk-management context appears on the position sizing risk management page.
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Frequently Asked Questions
What is risk per trade?
Risk per trade is the amount of capital you will lose if the stop-loss is hit. It is usually expressed as a percentage of account equity or as a fixed dollar amount derived from that percentage.
How do you calculate risk per trade?
Risk per Trade ($) = Account Equity × Risk Percentage. This dollar figure then becomes the numerator in the position-size formula.
Why define risk before choosing position size?
Defining risk first forces consistency. The position size becomes the result of the risk decision rather than an arbitrary choice that produces uncontrolled risk.
Can risk per trade be a fixed dollar amount?
Yes, but a fixed dollar amount that is not adjusted as equity changes will produce varying percentage risk. Percentage-based risk is usually preferred.
How does the calculator use risk per trade?
The Trading Position Size Calculator first computes the dollar risk from your equity and risk percentage, then divides by risk per unit to obtain position size.
What is a typical risk per trade?
Common professional ranges are 0.5 % to 2 % of equity. Many traders use 1 % as a default ceiling.
Final Call to Action
Decide the dollar risk first. Let position size be the mathematical result of that decision.
Calculate risk per trade and position size → Open the free Trading Position Size Calculator
Disclaimer: Trading involves substantial risk of loss. These calculations are educational only and do not guarantee future results. Never risk more than you can afford to lose.