Day Trading Profit/Loss Calculator
Enter your stake, broker payout, and win rate to see net P&L, the exact break-even win rate, expected value per trade, and — unlike any other calculator — your real variance, losing-streak odds, and risk of ruin.
Projected Balance Over the Session
Expected account curve at your edge, with the realistic best- and worst-case bands from variance.
How to Use This Calculator
- 1Enter your stakeThe fixed amount you put on each trade — what you lose when a trade goes against you.
- 2Set the broker payoutThe percentage your broker returns on a win. Most day trading brokers pay 70–95%.
- 3Enter your win rateYour real, measured share of winning trades — not your hopes. Use at least 100 trades of history.
- 4Add trades & balanceSession length and account size unlock the variance, risk-of-ruin, and sizing analysis.
- 5Read the verdictEdge, expected value, the realistic range, and your chance of ending in profit — all update instantly.
Why 50% Win Rate Loses Money
Day trading outcomes are asymmetric whenever your planned loss and target return differ. If you risk $100 to target an 80% return, a winning trade earns $80 while a full-risk loss costs $100.
That asymmetry is the whole game. Win half your trades at an 80% payout and for every two trades you lose $100 and make $80 — a net loss. You do not break even at 50%; you break even at 55.6%. The lower the payout, the higher the wall you must clear.
This calculator front-loads that reality: it shows the exact break-even win rate for your payout, your edge above or below it, and the expected value of every single trade.
Worked Example: Why Payout Beats Win Rate
A system with a steady 55% win rate over 1,000 trades at $100 each. The only difference is the broker's payout. Watch the bottom line flip.
| Metric | Broker A — 80% | Broker B — 85% |
|---|---|---|
| Payout | 80% | 85% |
| Winning trades (55%) | 550 | 550 |
| Losing trades (45%) | 450 | 450 |
| Gains from wins | $44,000 | $46,750 |
| Losses | $45,000 | $45,000 |
| Net result | −$1,000 | +$1,750 |
Break-Even Win Rate by Payout
The minimum share of trades you must win just to stay flat. Below these numbers, the math guarantees losses no matter how disciplined you are.
| Payout | Break-Even Win Rate |
|---|---|
| 95% | 51.3% |
| 90% | 52.6% |
| 85% | 54.1% |
| 80% ← Your payout | 55.6% |
| 75% | 57.1% |
| 70% | 58.8% |
| 65% | 60.6% |
| 60% | 62.5% |
Expected Value & Your Edge
A positive EV means a long-run edge. A negative EV means a slow, mathematically certain bleed.
Expected value is the average profit or loss of one trade if you repeated it thousands of times. It is the single most honest number in trading: it strips out luck and shows what your strategy actually earns per trade. A $0.50 positive EV on a $100 stake is a real, compoundable edge. A negative EV cannot be saved by position sizing, martingale, or discipline — only by a higher win rate or a higher payout.
Variance: Why a Winning Strategy Still Blows Up
Expected value tells you the destination. Variance tells you how violent the road is. Even with a genuine 5% edge, the path is a random walk — and short-term luck routinely buries a good system long enough for the trader to abandon it or over-bet and bust.
This is the gap every other calculator ignores. They multiply win rate by payout and stop. We model the full distribution: the realistic ±1σ range of outcomes, your probability of actually ending the session in profit, and the longest losing streak you should expect.
Risk of Ruin
Risk of ruin is the chance your account hits zero before your edge plays out. It rises sharply with stake size. Even a profitable trader who risks 20% per trade can be wiped out by a normal losing streak. The loss-cushion figure in the results shows exactly how many consecutive losses your balance survives — and how likely that streak is.
The 1–2% Rule
The fix is position sizing. Risk a small fixed percentage — 1% to 2% — of your account per trade. At 2%, you survive 34 losses in a row and keep more than half your capital. At 10% stake, eleven straight losses ends you. The calculator flags when your stake is too large for your balance.
Typical Day Trading Return Targets (2026)
Target returns vary by asset, holding time, broker, and market conditions. Higher-volatility and OTC assets often behave differently. Because a few points of expected return move your break-even materially, comparing execution and costs is one of the highest-leverage things a day trader can do.
6 Mistakes That Drain Day Trading Accounts
Day trading is high-risk, and the majority of retail traders lose money. This calculator is an educational modelling tool, not investment advice or an endorsement of high-frequency trading. Only risk money you can afford to lose, use defined exits, and check the rules that apply in your country.
Trade With a Data Edge
BeCoin's forecast model gives you price projections, probability bands, and risk signals across crypto, stocks, forex, and commodities — so your win rate is built on data, not guesswork.
Frequently Asked Questions
What is the break-even win rate in day trading?
It is the minimum percentage of trades you must win to avoid losing money, set entirely by your broker's payout. The formula is Break-Even = 1 ÷ (1 + Payout). At an 80% payout you need to win 55.6% of trades; at 70% you need 58.8%.
How is expected value (EV) calculated?
EV = (Win Rate × Payout × Stake) − (Loss Rate × Stake). It is your average profit or loss per trade over the long run. A positive EV is a real edge; a negative EV means the strategy loses money no matter how it is managed.
Why does a 50% win rate lose money?
Because payouts are asymmetric. A loss costs your full stake, but a win returns only a fraction — say 80%. At 50% you lose $100 and make $80 per pair of trades, a net loss. You must win clearly more than half to profit.
What return target should day traders model?
Most pay between 70% and 95% depending on the asset, expiry, and conditions. OTC assets and higher-volatility markets often differ from standard ones. Always compare payouts before choosing where to trade — a few points materially change your break-even.
What is risk of ruin?
The probability your account hits zero before your edge plays out. It grows with stake size and with negative EV. Even a profitable strategy can ruin you if you risk too much per trade, because variance produces losing streaks that an over-sized stake cannot survive.
How much should I risk per trade?
Professionals risk 1–2% of their account per trade. At 2% you can survive 34 consecutive losses and keep over half your capital. Larger stakes dramatically raise your risk of ruin; the calculator flags when yours is too high for your balance.
Is the martingale strategy safe?
No. Doubling your stake after each loss feels like guaranteed recovery, but a long enough losing streak — which variance guarantees eventually — hits the broker's limit or empties your account. It trades many small wins for one catastrophic loss.
Does this calculator work for any broker?
Yes. Enter the target return for a winning trade and your own measured win rate. The expected-value math works for any platform where you can define the amount at risk and the planned return.
How many trades do I need before my win rate is reliable?
At least 100, ideally several hundred. A win rate over 20–30 trades is mostly luck. The variance and streak figures here show how wide the swing can be even when your true edge is fixed.
Can I really get rich from day trading?
It is very hard. The majority of retail traders lose money. A genuine, sustained edge, defined exits, and strict 1–2% risk sizing are essential — and even then the realistic range of outcomes is wide.
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Educational tool only. Not financial advice. Day trading is high-risk; most retail traders lose money. Read the full disclaimer