Most traders don’t blow up from bad trades. They blow up from position size.

BLOWN runs 5,000 simulated versions of your next 100 trades and shows you how many of them end with a blown account.

Enter four things: your account size, your risk per trade, your win rate, and your reward for each unit risked. That’s it.

WHAT YOU GET BACK

→ Your blow-up percentage out of 5,000 runs
→ The largest risk per trade you could take instead — the biggest size that keeps your blow-up chance under 5%
→ 40 simulated equity curves so you can see the ones that die
→ The longest losing streak you should expect
→ The deepest dip from your peak
→ A side-by-side of what 0.5%, 1%, 2%, 5% and 10% risk actually do to your odds

BUILT FOR PROP TRADERS TOO

Set the blow-up line to 10% or 5% to match your firm’s drawdown rule and see the odds on a funded challenge.

NO CATCH

Free. No email. No signup. No account. It runs entirely in your browser — nothing you type ever leaves your device. Works on phone and desktop, online or off.

Not advice, not a prediction, and not a profit claim. It’s a maths model of the numbers you enter. Fees, spread and slippage are not included, so real results are usually a little worse.