Work backwards from the price, not the dream
Most traders pick a leverage and a position, then stare at the chart hoping. The useful question is the reverse: what price do I actually need? Your profit in ROE terms is just the price move times leverage, minus fees. So a 100% ROE (doubling your margin) needs a price move of roughly 100% ÷ leverage in your favour — about 10% at 10x, 5% at 20x, 2% at 50x. This tool adds the bit extra needed to cover the taker fee you pay opening and closing, so the exit price it shows is the real one, not the fee-free fantasy.
That same maths is a warning. The reason a 50x target looks so close to entry is that everything is close to entry at 50x — including liquidation. A take-profit two percent away sounds easy until you remember the coin routinely moves two percent against you first. Pair this with the liquidation calculator to see how much room you really have, and the risk/reward calculator to check the target is worth the stop.
Once you know the exit price, the PnL / ROE calculator confirms the profit at that price, and the real futures profit calculator layers in funding if you'll hold across funding windows.
How to use it
1. Pick long or short and enter your entry price, leverage and margin.
2. Set the taker fee for your exchange (0.055% is typical; makers pay less or zero).
3. Choose a target by ROE % (e.g. 100% to double your margin) or by a dollar amount.
4. Read the exact exit price, and use the table to compare targets at a glance.
Common mistakes
Ignoring fees. At high leverage the round-trip fee eats a real slice of a small move — a 1% target at 20x is almost half fees. Targeting ROE that needs an impossible move. If the price move required is bigger than a realistic swing, the target is a fantasy; lower it or raise size. Forgetting funding. This tool covers trading fees, not funding paid while the position is open — hold for days and funding can quietly move your true break-even.
FAQ
What exit price doubles my margin? A 100% ROE needs a price move of about 100% ÷ leverage in your favour, plus fees. The calculator shows the exact price for your inputs.
Why is the short exit below my entry? A short profits when price falls, so the target exit price is below entry — the further it falls, the higher your ROE.
Does higher leverage move my take-profit closer? Yes, but liquidation moves closer too. A tight target at high leverage is easy to set and easy to get wiped out before it fills.