Example Data Table
| Item |
Example Value |
Meaning |
| Total closed trades |
100 |
Completed trades in the sample. |
| Winning trades |
56 |
Trades closed with profit. |
| Losing trades |
38 |
Trades closed with loss. |
| Break even trades |
6 |
Trades closed near zero. |
| Gross profit |
8400 |
Total profit before losses and fees. |
| Gross loss |
5200 |
Total loss before subtracting fees. |
Formula Used
Core Win Rate = Winning Trades / (Winning Trades + Losing Trades) × 100.
All Trade Win Rate = Winning Trades / Total Closed Trades × 100.
Average Win = Gross Profit / Winning Trades.
Average Loss = Gross Loss / Losing Trades.
Payoff Ratio = Average Win / Average Loss.
Profit Factor = Gross Profit / Gross Loss.
Expectancy = (Win Rate × Average Win) - (Loss Rate × Average Loss) - Fees Per Trade.
Break Even Win Rate = Average Loss / (Average Win + Average Loss) × 100.
Kelly Fraction = Win Probability - (Loss Probability / Payoff Ratio).
How To Use This Calculator
Enter the number of closed trades in your sample. Add winning, losing, and break even trades. Enter gross profit, gross loss, and total fees. Add your starting account balance for return measurement. Use planned risk and planned reward to test a target setup. Press calculate. The result appears below the header and above the form. Use CSV or PDF export to save the review.
Win Rate Trading Calculator Guide
Trading performance can feel noisy. A physics mindset helps. You observe motion, measure force, and compare outcomes. This calculator uses the same discipline for trades. It separates wins, losses, costs, and reward size. Then it turns those inputs into useful performance signals.
Why Win Rate Matters
Win rate shows how often a setup closes as a winner. It is not enough by itself. A system can win often and still lose money. That happens when average losses are larger than average wins. A lower win rate can also work. It needs strong payoff and controlled risk.
The tool therefore shows win rate, loss rate, payoff ratio, profit factor, expectancy, and break even levels. These values act like instruments on a trading dashboard. Each value answers a different question. Together, they reveal whether the setup has positive pressure.
Risk and Expectancy
Expectancy is the main quality measure. It estimates the average profit or loss per trade. The formula uses the probability of winning, average win, probability of losing, average loss, and trading costs. Positive expectancy means the setup has a mathematical edge. Negative expectancy means the plan needs review.
Risk inputs add another layer. You can test account risk per trade. You can also estimate the damage from several losses in a row. This is useful because losing streaks happen even in good systems. A strong plan must survive normal variance.
How Results Should Be Used
Use results after a meaningful sample. Ten trades may give early hints. Fifty or more trades provide better context. Always compare the numbers with your journal notes. Market condition, entry quality, exit discipline, and position sizing all matter.
The calculator is designed for review, not prediction. It does not know future price movement. It measures past or planned performance. Export the results to CSV or PDF after each test. Keep those records beside screenshots and written notes. Over time, this creates a clearer picture of your trading method. Good decisions come from repeated measurement, not guesses.
Physics Link
In physics, repeated measurements reduce error. In trading, repeated reviews reduce bias. Treat each setup like an experiment. Record conditions, apply consistent sizing, and judge results only after enough trials over time.
FAQs
What is a trading win rate?
Trading win rate is the percentage of winning trades compared with winning and losing trades. Break even trades can be reviewed separately.
Is a high win rate always better?
No. A high win rate can still lose money if average losses are much larger than average wins.
What is expectancy per trade?
Expectancy estimates the average profit or loss expected from one trade after probabilities, average outcomes, and costs are considered.
What does profit factor mean?
Profit factor compares gross profit with gross loss. A value above one means gross profit is larger than gross loss.
Why include fees and commissions?
Fees reduce real performance. Small costs can strongly affect short term systems, scalping methods, and frequent trading plans.
What is break even win rate?
Break even win rate shows the win percentage needed to avoid loss, based on average win and average loss size.
What is the Kelly fraction?
The Kelly fraction is a theoretical sizing guide. It uses win probability and payoff ratio to estimate aggressive position size.
Can this calculator predict future trades?
No. It measures current or historical trade data. Future results still depend on market behavior, execution, and risk control.