Profit Factor in Trading: Formula, What Counts as Good and How to Improve It

What profit factor is, how to calculate it from your trades, how it connects to win rate and average win, what counts as good and how to raise it.

LSG Club · 17 October 2026 · 8 min read

Profit factor is the simplest honest summary of a trading record: how many dollars you made for every dollar you lost. It takes one line to calculate, yet it is often misread, because a single lucky trade, a small sample or ignored costs can make a weak record look strong. This guide from LSG Club covers the profit factor formula, how it connects to win rate and average win, which values traders use as rough reference points and how to raise it without fooling yourself.

What is profit factor in trading?

Profit factor is the gross profit of all winning trades divided by the gross loss of all losing trades, with the loss taken as a positive number. It answers one question: over this set of trades, did the winners pay for the losers, and by how much?

Profit factor above 1 — the winners earned more than the losers cost; the record is profitable.
Profit factor of exactly 1 — break-even: every dollar won was given back.
Profit factor below 1 — the losers cost more than the winners earned; the record loses money.

Because it is a ratio, profit factor is independent of account size. A trader with a $5,000 account and one with $500,000 can compare their records directly, which is why journals, prop dashboards and strategy testers all report it.

The profit factor formula, step by step

The formula is profit factor = gross profit ÷ gross loss. Gross profit is the sum of every winning trade, gross loss is the sum of every losing trade without the minus sign. Break-even trades add nothing to either side.

A worked example

The numbers below are a hypothetical illustration of the math, not anyone’s real results. Suppose a month of 20 closed trades looks like this:

8 winning trades that together made $2,400 — the gross profit.
11 losing trades that together lost $1,650 — the gross loss.
1 trade closed at break-even — it counts in neither total.
Profit factor = 2,400 ÷ 1,650 ≈ 1.45: each dollar lost was matched by about $1.45 won.

Count only closed trades, and use the net result after commission and swap. A profit factor computed on gross prices before costs flatters every strategy, and it flatters short-stop scalping the most, because costs are a larger share of a small stop.

Profit factor in R instead of dollars

If your position size changes from trade to trade, dollar results mix two things: the quality of the setups and the size you happened to use. Calculating profit factor in R, where 1R is the amount risked on the trade, removes the size effect. A record of +2R, −1R, +1.5R, −1R gives a profit factor of 3.5 ÷ 2 = 1.75, whatever the account size was.

How profit factor relates to win rate and average win

Profit factor is not a separate property of a strategy. It is built from three numbers you already track: win rate, average win and average loss. Written out, profit factor = (number of wins × average win) ÷ (number of losses × average loss).

At a 50% win rate, profit factor equals the ratio of average win to average loss: wins averaging $300 against losses averaging $200 give 1.5.
At a 40% win rate with the same $300 and $200, profit factor drops to (0.4 × 300) ÷ (0.6 × 200) = 1.0 — break-even.
At a 60% win rate, even wins smaller than losses can produce a profit factor above 1: (0.6 × 180) ÷ (0.4 × 200) = 1.35.

This is why the debate in win rate vs risk-reward matters: neither number decides profitability alone, and profit factor is one way of combining them. Expectancy is the other — it gives the average result per trade, while profit factor gives the ratio of winners to losers. They always agree on the sign: a profit factor above 1 means positive expectancy.

What is a good profit factor?

There is no official standard. Many traders use loose reference points, and they are only meaningful after costs and over a decent sample:

Below 1.0 — losing; the strategy or its execution needs work before anything else.
1.0 to about 1.2 — thin; spread, slippage or a few rule breaks can turn it negative.
About 1.2 to 2.0 — the range where many workable discretionary records sit.
Well above 2.0 over a small sample — treat it with suspicion: check for one outsized winner, too few trades or results that exclude costs.

A high profit factor also says nothing about how the results arrived. Two records with the same 1.6 can have very different paths: one climbs steadily, the other falls 25% before recovering. That is why profit factor should always be read next to maximum drawdown and the length of losing streaks.

Common profit factor mistakes

Too few trades — with 15 trades, one winner more or less can move profit factor from 1.1 to 1.6. Treat anything under 30 trades as a hint, and look for 50–100 per setup before drawing conclusions.
One trade carrying the record — recalculate without your single largest win. If profit factor falls below 1, the edge is that one trade, not the strategy.
Costs left out — always use net results after commission and swap.
Mixed setups — a blended profit factor can hide one setup that loses money behind another that earns it.
Open trades counted — floating profit is not profit yet; use closed trades only.
Hiding losers — moving the stop to avoid a loss turns small, planned losses into rare, large ones. Profit factor may look better for a while, until the large loss arrives.

How to improve your profit factor honestly

There are only two levers: make the winners larger or the losers smaller. The ways that last are about rules and execution, not about bigger targets alone.

Keep every loss at the planned 1R — late exits beyond the stop are the most common reason the average loss grows.
Cut the weakest setup — split profit factor by setup, session and instrument, and stop trading the one below 1 until you understand why.
Stop closing winners early out of fear — compare planned and realized R; a large gap points to management, not to entries.
Review the break-even rule — moving the stop to entry too early turns some winners into scratches and lowers the average win.
Reduce costs — fewer, better trades often raise net profit factor more than any entry tweak.
Change one thing at a time and collect a new sample before judging it.

A weekly trade review is the natural place to check these numbers, and the risk-reward and expectancy calculator shows the break-even win rate for any average R:R. Trading leveraged products carries a real risk of loss; a better profit factor on past trades does not guarantee future results.

Where to see profit factor in a trading journal

A spreadsheet can calculate profit factor, but only if every trade is entered with its net result, and it rarely splits the number by setup or session without extra work. In the LSG Club journal profit factor is calculated from your closed trades, next to the average win and loss, win rate, the equity curve and maximum drawdown. Results can be shown in $, % or R, with breakdowns by session, setup and weekday in your time zone.

Trades arrive by MT4/MT5 report import or by hand with the position calculator, both free, or by MT5 auto-sync, which comes with a club contribution.
Every trade sits on a real chart with its entry, stop and target, so a suspicious winner is easy to check.
The free trading journal covers the journal and analytics with no card and no time limit; you can look around the journal demo first.

Profit factor FAQ

What does a profit factor of 1.5 mean?

It means the winning trades earned $1.50 for every $1.00 the losing trades cost over the period measured. It is profitable, but whether it is reliable depends on the number of trades and whether costs are included.

Can profit factor be infinite?

If there are no losing trades, the formula divides by zero and profit factor is undefined. In practice that only happens over very short samples, and it is a reason to wait for more trades, not a sign of a perfect strategy.

Is profit factor better than win rate?

It is more complete, because it includes the size of wins and losses, while win rate ignores them. Still, profit factor does not show drawdown depth or losing streaks, so read it together with maximum drawdown and expectancy.

How many trades do I need for a meaningful profit factor?

At least 30 closed trades for a rough idea and 50–100 per setup for a usable estimate. Below that, a single trade can change the result substantially.