Break-Even Recovery Calculator
Enter any percentage loss and see the gain you need just to get back to where you started. A 50% loss takes a 100% gain to undo — and the maths only gets steeper from there. This is the clearest lesson in why protecting capital beats chasing big wins.
Enter how much a trade or account is down, as a percentage of its starting value. The calculator returns the gain — on the reduced balance — needed just to get back to breakeven. The relationship is not symmetrical: losses and the gains that undo them grow apart fast.
The maths: required gain = loss ÷ (100% − loss). A 50% loss needs a 100% gain; a 20% loss needs 25%; a 10% loss needs about 11.1%. This is why protecting capital and cutting losses early matters more than chasing big wins.
Gain needed to break even
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How to use the calculator
- Enter the percentage loss on your trade or account — how far it is down from its starting value.
- Read the gain required on the remaining balance to get back to breakeven.
- Compare your figure against the reference bars for 10%, 20%, 30%, 50%, 70% and 90% losses, with your own value highlighted.
- Notice how the required gain accelerates — the curve steepens far faster than the loss itself grows.
Why the recovery is never symmetrical
When you take a loss, the gain needed to recover is always larger than the loss itself — because you earn that gain on a smaller pot of money. Lose 20% of $10,000 and you have $8,000. Earning 20% back on $8,000 only gets you to $9,600. You actually need 25% to reach $10,000 again. The formula is simple: required gain = loss ÷ (1 − loss).
The relationship is dangerously non-linear. A 10% loss needs an 11.1% gain — barely noticeable. A 50% loss needs a 100% gain — you must double what remains. A 90% loss needs a 900% gain, which for practical purposes means the capital is gone. Every extra percent of loss makes the climb back disproportionately harder.
This single idea underpins professional risk management. It is why disciplined traders cap the loss on any one position at a small fraction of their account, why stop-losses exist, and why “don't lose big” beats “win big” over a career. Keeping every loss small keeps you on the gentle part of this curve, where a normal winning trade is enough to recover — instead of needing a rare, outsized win just to break even.
Frequently asked questions
How do you calculate the gain needed to recover from a loss?
The formula is required gain = loss ÷ (1 − loss), where the loss is expressed as a decimal. A 50% loss is 0.5 ÷ (1 − 0.5) = 1.0, or a 100% gain. A 20% loss is 0.2 ÷ 0.8 = 0.25, a 25% gain. A 10% loss needs about 11.1%. The gain is always larger than the loss because you are earning it on a smaller balance.
Why does a 50% loss need a 100% gain to recover?
Because the gain is measured against the reduced balance, not the original. Lose 50% of $10,000 and you have $5,000 left. To get back to $10,000 you must double that $5,000 — a 100% gain. The bigger the loss, the more the required gain accelerates, which is the whole reason capital preservation matters.
What percentage gain do I need after a 30% or 70% loss?
A 30% loss needs about a 42.9% gain to break even (0.3 ÷ 0.7). A 70% loss needs about a 233% gain (0.7 ÷ 0.3). A 90% loss requires a 900% gain. The relationship is not linear — the deeper the hole, the rarer the winner you need to climb out, which is why disciplined traders cut losses early.
How does this apply to trading and risk management?
It is the mathematical case for small, controlled losses. If every loss is kept to a few percent of your account, the recovery gain needed is trivial and repeatable. Let a single position run to a 40% or 50% loss and you need an outsized winner just to break even. Position sizing and stops exist precisely so no one trade can push you into that steep part of the curve.
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Educational tool only — not financial advice. Trading involves substantial risk of loss and nothing here promises a return. Also see our trading blog.