Profit Factor Calculator [Free Tool]
Measure how much you earn for every dollar you lose across your closed trades. A compact, honest score for whether a track record pays more than it costs.
Disclaimer: Trading financial instruments involves risk, and everything on this page is provided for educational purposes only. Nothing here is financial advice or a recommendation to buy or sell any instrument.
Profit Factor
1.92
3 winning trades / 2 losing / 5 total
Gross Profit
$2500.00
Gross Loss
$1300.00
Profit Factor > 1 means you make more than you lose. This is profitable.
How is this calculated?
Profit Factor = Gross Profit ÷ Gross Loss
Gross Profit = sum of all winning trades; Gross Loss = sum of all losing trades (absolute).
Read the full user guide
Every parameter, formula, and worked example — a complete reference for this tool.
What is profit factor?
Profit factor is the ratio of gross profit to gross loss across all your trades. It answers a single, blunt question: for every dollar lost, how many dollars did the strategy earn back? Above 1 means gross profit exceeds gross loss; the higher the number, the wider the safety margin. It is a compact way to judge a whole track record at a glance, but like every single metric it means little without the sample size and the costs behind it. This calculator turns your totals into that ratio instantly.
Key concepts
Gross profit
The sum of all profitable trades.
Gross loss
The sum of all losing trades, expressed as a positive number.
Interpretation
Above 1 gross profit exceeds gross loss; the higher, the wider the margin.
A worked example with real numbers
- 1
Sum the profitable trades
Your winners total $2,400 over the sample period.
- 2
Sum the losing trades
Your losers total $1,500, expressed as a positive number for the ratio.
- 3
Divide the two
$2,400 ÷ $1,500 = 1.6, so your profit factor is 1.6. For every dollar lost, the strategy earned $1.60 back in gross profit.
- 4
Interpret the margin
Profit factor 1.6 gives a comfortable cushion above break-even 1.0, but always re-check it after more trades and with fees included.
How to use it
Enter gross profit
Total of your winning trades.
Enter gross loss
Total of your losing trades.
Read the ratio
Profit factor = gross profit ÷ gross loss.
The formula, step by step
Profit factor
Profit factor = Gross profit ÷ Gross loss
Uses absolute value of gross loss.
Mistakes traders make
✗ Celebrating a profit factor above 1.0 built on three winning trades
✓A tiny sample inflates the ratio. A 1.8 on twenty trades is far more credible than a 1.8 on three.
✗ Comparing profit factors across portfolios with very different trade counts
✓The ratio needs context. A long-established system at 1.4 may be far better than a fresh one at 2.0.
✗ Using gross results instead of net
✓Fees and slippage compress the real ratio. Net profit factor is the honest version.
When this tool fits — and when it does not
Use it when
- ✓As a quick summary of whether a whole track record pays more than it costs.
- ✓When ranking several candidate strategies against each other.
- ✓Alongside drawdown, to check the profit is not only large but survivable.
Skip it when
- ✗Reading the number with fewer than 30 trades behind it.
- ✗Treating a high value from one market regime as permanent.
- ✗Ignoring the equity curve — profit factor hides how rough the path was.
Practical tips that actually help
Combine it with drawdown, always
Profit factor tells you the destination; drawdown tells you the road. A high ratio with a brutal path may still be untradeable in practice.
Recalculate on a rolling basis
Track the ratio over your last 50 trades. A steady number is healthier than one propped up by a single hot streak.
Include costs before you trust it
If net profit factor drops below about 1.2, the strategy may not be worth the transaction costs and stress.
Related & next steps
Frequently asked questions
What profit factor is good?▾
Above 1 is grossly profitable; many consider above ~1.5 meaningful. The number must be read with the number of trades — a tiny sample inflates it.
Does profit factor include costs?▾
It depends on the data you feed it. Using net trade results gives a more honest picture.
How is profit factor different from win rate?▾
Win rate counts trades; profit factor counts dollars. A strategy can win most of its trades yet have a profit factor below 1 if the rare losses are large, and vice versa.
Why can a profit factor above 1 still be a bad live strategy?▾
Because the ratio alone hides drawdown sequence and risk. A 1.2 profit factor built on huge, streaky losses can be unbearable to hold through, even if the math ends positive.
Does a higher profit factor always mean a better strategy?▾
Not necessarily. Extremely high values often come from very few trades or a lucky period. Re-read the metric once a meaningful sample size is present.
What is the relationship between profit factor and expectancy?▾
They are cousins: expectancy is the average dollar result per trade, while profit factor is the ratio of total wins to total losses. Both improve together, but profit factor is easier to compare across different account sizes.
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Profit factor is a historical summary statistic, not a guarantee of future performance.
Disclaimer: The tools and content on this site are provided for educational purposes only and do not constitute investment advice. Trading and investing involve a substantial risk of loss, and past performance does not guarantee future results.