Free tool
Prop firm calculator
Your daily loss limit, max drawdown, profit target and consistency rule in one place, plus an honest estimate of how long your plan could take to pass and how often it would fail. No sign-up; nothing you type leaves your browser.
1. Your challenge rules
2. Where you stand today
0% of today’s daily allowance ($5,000) used · daily floor $95,000 · max-loss floor $90,000
3. How long could it take to pass?
On average, about 15 trading days to reach the target. Real results swing around the average, which is why the simulation below matters more.
Simulated over 2,000 challenges
- Pass 96% · median 11 days
- Fail on the daily limit 0%
- Fail on max loss 4%
- Not finished in 180 days 0%
Each simulated challenge trades your plan with independent wins and losses at your win rate and reward : risk, stops for the day once the target is hit, and checks the limits after every closed trade. It leaves out costs, slippage and floating losses, and real trading is rarely this regular, so treat it as a comparison between plans, not a prediction. Try a lower risk per trade and watch the pass rate.
Win rate × reward : risk at $1,000 risk per trade
Average trading days to the target, and the share of simulated challenges that pass. Your current numbers are highlighted; tap a cell to use it.
| Win rate | 1:1 | 1:1.5 | 1:2 | 1:3 |
|---|---|---|---|---|
| 35% | ||||
| 40% | ||||
| 45% | ||||
| 50% | ||||
| 55% | ||||
| 60% | ||||
| 65% |
“never” means the average trade loses money at that combination. Pass rates use 400 simulated challenges per cell.
Estimates from the numbers you enter; nothing leaves your browser. Firms differ in what they measure (balance or equity), when the day resets and how trailing drawdown moves. Your firm’s rules page and dashboard are what count.
How the numbers are calculated
Daily loss limit
Firms define the daily allowance in one of two ways:
- A fixed amount from the initial balance. Allowance = limit % × initial account size, subtracted from today’s starting balance. On $100,000 with a 5% rule, the allowance is $5,000 every day; after a day that ends at $102,000, the next floor is $97,000.
- A percentage of a moving reference. Allowance = limit % × the start-of-day balance (some firms use the higher of balance and equity). With 3% of $101,000, the allowance is $3,030 and the floor is $97,970.
Max loss: static or trailing
A static max loss sits at a fixed level: on $100,000 with 10%, equity must stay above $90,000 for the whole challenge. A trailing max loss moves up with your highest balance: after a high of $104,000, the same 10% floor is $94,000. Some firms stop the trailing line once it reaches the starting balance. Firms also differ on whether the high is measured at the end of the day or during it.
Profit target and consistency rule
The target is a percentage of the initial balance: 10% on $100,000 means a balance of $110,000. A consistency rule caps your best day as a share of total profit. With a 40% rule and a $5,000 best day, you need at least $12,500 of total profit before the target counts, even if the target itself is lower.
How long to pass, and how often it fails
The average result per trade is (win rate × reward) − (loss rate × risk). Dividing the distance to the target by that average gives the average number of trades and days. Averages hide streaks, so the calculator also simulates thousands of challenges with your numbers and counts how many pass, how many hit the daily limit and how many hit the max loss. A losing streak that is normal for your win rate can end a challenge when the risk per trade is too high; lowering it usually lifts the pass rate more than anything else.
Educational tool, not investment advice. Simulated results are not a prediction of your results. Prop firm rules change and differ by program; always check your firm’s current rules page and dashboard.