Account Risk Percentage Calculator: Decide How Much Equity to Risk per Trade
The first decision in risk-based position sizing is how much of your equity you are willing to lose on any single trade. That percentage becomes the foundation of every subsequent size calculation. This page focuses on choosing and applying account risk percentage.
Use the free Trading Position Size Calculator to convert any risk percentage into dollar risk and the resulting position size.
Common Risk Percentages
- 0.5 % – very conservative
- 1 % – widely used professional default
- 1.5–2 % – higher risk tolerance, still within many institutional guidelines
- Above 2 % – significantly increases the chance of large drawdowns
The percentage is multiplied by current equity to produce the dollar risk that feeds into the position-size formula. See the risk per trade calculator and position size based on risk pages for the next steps.
Why Percentage-Based Risk
A fixed dollar risk that is never adjusted will represent a changing percentage of equity as the account grows or shrinks. Percentage-based risk keeps relative exposure constant and automatically reduces size during drawdowns — an important protective feedback loop.
Broader context appears on the position sizing risk management page.
Cluster Links
Frequently Asked Questions
What is account risk percentage?
Account risk percentage is the fraction of total equity you are willing to lose on a single trade if the stop-loss is hit. It is the starting point of risk-based position sizing.
What percentage should I risk per trade?
Most professional frameworks recommend 0.5 % to 2 %. Many traders use 1 % as a default ceiling. Conservative traders often stay at or below 1 %.
Why use a percentage instead of a fixed dollar amount?
A percentage automatically scales with account size. As equity grows or shrinks, the dollar risk adjusts so that relative risk stays constant.
Can I use different percentages for different setups?
Yes. Many discretionary traders reduce the percentage on lower-conviction trades while keeping a hard maximum for all trades.
How does the calculator use the risk percentage?
It multiplies equity by the percentage to obtain dollar risk, then divides by risk per unit to obtain position size.
What happens if I risk too high a percentage?
A series of losses can produce large drawdowns that are difficult to recover from. Lower percentages improve survival probability.
Final Call to Action
Choose a risk percentage you can live with through a string of losses. Then let the calculator turn that percentage into exact position sizes.
Convert risk percentage into 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.