Why set both before you enter
A plan without a stop is a hope, not a trade. Decide your stop-loss (where you're wrong) and take-profit (where you bank it) before entering, and you turn an emotional decision into arithmetic. The risk-to-reward ratio tells you if the trade is even worth taking: at 1:2 you can be right less than half the time and still make money. Pair this with the position size calculator to cap your dollar risk per trade, and see how streaks play out in the risk of ruin calculator. Check your downside with the liquidation calculator too.
Set both before you open, not after you're in
The psychology shifts the moment you have an open position. Setting stop and TP while you're flat gives you the one moment of clear thinking you'll get. After entry, every tick toward your stop looks like noise and every tick toward TP looks like time to grab profit early.
A 2:1 reward/risk minimum is a common starting point — if your stop is 2% away, TP should be at least 4% away. At exactly 2:1 you break even at a 33% win rate. Most strategies need 45–55% to cover fees on top of that.
For perpetual futures on fast moves: tight stops (1–1.5%) eat 0.11% fee load proportionally less, leaving more of the PnL. Wider stops (3–5%) on swing setups mean fees matter less but overnight funding eats into gains on multi-day holds.
Related: position size from stop distance, risk/reward calculator, required win rate.