Drawdown is asymmetric
The deeper the drawdown, the harder the recovery — non-linearly. 10 % needs +11 % back, 50 % needs +100 %, and 75 % needs +300 %. This is why disciplined traders cap risk per trade.
Free trader tools
Drawdown Calculator
Punch in your account's high-water mark and where it sits today. We give you back the dollar drawdown, the percent drawdown, and — the part most traders ignore — the percentage gain you now have to make on the smaller balance just to get back to flat.
A 30 % drawdown doesn't need a 30 % rally to recover. The recovery math is brutal, and the calculator makes that obvious before the next oversized loss makes it personal.
MindTrajour_Drawdown
What this number actually means
Three reads to take seriously before you size up the next trade.
Most blow-ups are gradual then sudden
Account-killing drawdowns rarely come from a single trade. They come from a string of normal-sized losers, then one oversized one taken on tilt. The autopsy almost always points to one trade that broke the rules.
Recovery is not the same as edge
Climbing back to peak doesn't prove the strategy works — it just proves you survived. The work is figuring out which trades caused the drawdown so it doesn't repeat with the next position.
Drawdowns start with one trade
Drawdowns this size usually start with one oversized loss.
MindTrajour's autopsy view shows you which trade triggered the drawdown — the position size, the emotional state, the rule that got broken. That's how you stop the next one before it doubles.
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Keep stacking your edge
Other calculators traders pair with this one.
risk
Risk of Ruin Calculator
Punch in your starting balance, win rate, average R and a horizon of trades. We run two calculations side by side: the closed-form risk of ruin (when bets are symmetric) and a 1000-trial Monte Carlo simulation in a web worker — so you see the realistic distribution, not just the headline.
Open toolrisk
Position Size Calculator
Punch in your equity, the percent you want to risk, your stop distance, and the pip value. We give you back the lot size that actually keeps you alive — not the one your gut wants you to take.
Open tooloptions
Iron Condor Calculator
Punch in your four strikes, the net credit, and the number of contracts. We give you back the max profit, max loss, both break-evens, and a payoff diagram that shows exactly where the trade lives or dies.
Open toolFrequently asked questions
Everything you need to know before sizing your next trade.