Complete guide
Stop-Loss Calculator: formula, example and decision guide
Derive a stop price or maximum loss from entry, position size and risk assumptions. The result updates instantly and keeps every assumption visible.
What the Stop-Loss Calculator measures
Derive a stop price or maximum loss from entry, position size and risk assumptions.
Use the result to compare scenarios built from the same definitions and time period.
Formula and variables
The calculator applies stop distance = (maximum loss − fees) ÷ position units. Each variable is entered in a labeled field and remains visible beside the answer.
stop distance = (maximum loss − fees) ÷ position unitsWorked example
A $250 loss budget, $10 fees and 50 units gives $4.80 price distance.
Change one input at a time to see which assumption has the greatest effect on the result.
How to interpret the result
Read the main result together with the detailed rows; the headline number alone does not describe every cost, unit or assumption.
Save comparable scenarios with the copy, link, CSV or PDF controls.
Assumptions and limitations
A stop order does not guarantee execution at the stop price during gaps, volatility or illiquidity.
Real contracts, measurements, platform rules and professional standards can add inputs that this general-purpose model does not infer.
Accuracy checklist
Confirm units, time periods, fees and source figures before relying on the output.
Round the displayed answer only after the calculation; intermediate values retain full precision.
Calculation audit
| Item | What to review |
|---|---|
| Inputs | Position direction, Solve for, Entry price, Position units, Maximum price loss, Entered stop price, Round-trip fees |
| Equation | stop distance = (maximum loss − fees) ÷ position units |
| Example | A $250 loss budget, $10 fees and 50 units gives $4.80 price distance. |
| Limit | A stop order does not guarantee execution at the stop price during gaps, volatility or illiquidity. |
Frequently asked questions
What does this Stop-Loss Calculator calculate?
Derive a stop price or maximum loss from entry, position size and risk assumptions.
Which formula does it use?
stop distance = (maximum loss − fees) ÷ position units
Does it calculate while I type?
Yes. Valid changes update the result automatically without reloading the page.
Which inputs should I verify?
Verify every unit, period, rate and fee against the source you are modeling.
Is the result exact?
A stop order does not guarantee execution at the stop price during gaps, volatility or illiquidity.
Can I save or share the result?
Yes. Copy, native sharing, WhatsApp, PDF/Print, CSV, comparison and parameterized links are available.
What to keep in mind
A stop order does not guarantee execution at the stop price during gaps, volatility or illiquidity.
Results display up to 8 decimal places; exported numbers preserve calculation precision. This is a calculation summary, not an official certificate.